diff --git a/src/HushGP/Instructions/GenericInstructions.hs b/src/HushGP/Instructions/GenericInstructions.hs
index 4c86711..fdca24a 100644
--- a/src/HushGP/Instructions/GenericInstructions.hs
+++ b/src/HushGP/Instructions/GenericInstructions.hs
@@ -286,6 +286,17 @@ instructionVectorFirst primAccessor vectorAccessor state =
         _ -> state
     _ -> state
 
+-- |Based on a vector lens, takes the first item from the top vector on the vector stack
+-- and creates a vector wrapping that first item, pushing it back onto the stack.
+instructionVectorFromFirstPrim :: Lens' State [[a]] -> State -> State
+instructionVectorFromFirstPrim accessor state =
+  case uncons (view accessor state) of
+    Just (v1, vs) ->
+      case uncons v1 of
+        Just (vp1, _) -> state & accessor .~ ([vp1] : vs)
+        _ -> state
+    _ -> state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type, 
 -- Takes the last item from the top vector and places it onto the passed primitive stack.
 instructionVectorLast :: Lens' State [a] -> Lens' State [[a]] -> State -> State
@@ -297,6 +308,17 @@ instructionVectorLast primAccessor vectorAccessor state =
         _ -> state
     _ -> state
 
+-- |Based on a vector lens, takes the last item from the top vector on the vector stack
+-- and creates a vector wrapping that last item, pushing it back onto the stack.
+instructionVectorFromLastPrim :: Lens' State [[a]] -> State -> State
+instructionVectorFromLastPrim accessor state =
+  case uncons (view accessor state) of
+    Just (v1, vs) ->
+      case uncons (drop (length v1 - 1) v1) of
+        Just (vp1, _) -> state & accessor .~ ([vp1] : vs)
+        _ -> state
+    _ -> state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
 -- Takes the Nth item from the top vector and places it onto the passed primitive stack
 -- based on an int from the int stack.
@@ -307,6 +329,16 @@ instructionVectorNth primAccessor vectorAccessor state@(State {_int = i1 : is})
     _ -> state
 instructionVectorNth _ _ state= state
 
+-- |Based on a vector lens, takes the Nth item from the top vector on the vector stack
+-- and creates a vector wrapping that Nth item, pushing it back onto the stack. N is
+-- the top item on the int stack.
+instructionVectorFromNthPrim :: Lens' State [[a]] -> State -> State
+instructionVectorFromNthPrim accessor state@(State {_int = i1 : is}) =
+  case uncons (view accessor state) of
+    Just (v1, vs) -> state{_int = is} & accessor .~ ([v1 !! absNum i1 v1] : vs)
+    _ -> state
+instructionVectorFromNthPrim _ state = state
+
 -- |Takes the top vector, removes the first item of said vector, and pushes the result back to top
 -- of the stack, based on a lens.
 instructionRest :: Lens' State [[a]] -> State -> State
@@ -366,6 +398,15 @@ instructionVectorContains primAccessor vectorAccessor state@(State {_bool = bs})
     (Just (v1, vs), Just (p1, ps)) -> state{_bool = (findSubA v1 [p1] /= -1) : bs} & vectorAccessor .~ vs & primAccessor .~ ps
     _ -> state
 
+-- |Based on a vector lens and the two vectors on the top of said stack.
+-- If the second vector can be found within the first vector, True is pushed to the
+-- bool stack. If not, False is pushed to the bool stack.
+instructionVectorContainsVector :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorContainsVector accessor state@(State {_bool = bs}) =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) -> state & accessor .~ vs & bool .~ ((findSubA v1 v2 /= (-1)) : bs)
+    _ -> state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
 -- finds the first index of the top item in the primitive stack inside of the
 -- top vector from the vector stack and pushes the result to the int stack.
@@ -375,6 +416,14 @@ instructionVectorIndexOf primAccessor vectorAccessor state =
     (Just (v1, vs), Just (p1, ps)) -> (state & vectorAccessor .~ vs & primAccessor .~ ps) & int .~ (findSubA v1 [p1] : view int (state & vectorAccessor .~ vs & primAccessor .~ ps))
     _ -> state
 
+-- |Based on a vector lens and the two vectors on top of said stack. Searches and pushes the
+-- index of the second vector inside of the first vector to the int stack. Pushes -1 if not found.
+instructionVectorIndexOfVector :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorIndexOfVector accessor state@(State {_int = is}) =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) -> state & accessor .~ vs & int .~ (findSubA v1 v2 : is)
+    _ -> state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
 -- finds the amount of times the top item in the primitive stack occurs inside of the
 -- top vector from the vector stack and pushes the result to the int stack.
@@ -384,6 +433,15 @@ instructionVectorOccurrencesOf primAccessor vectorAccessor state =
     (Just (v1, vs), Just (p1, ps)) -> (state & vectorAccessor .~ vs & primAccessor .~ ps) & int .~ (amtOccurences v1 [p1] : view int (state & vectorAccessor .~ vs & primAccessor .~ ps))
     _ -> state
 
+-- |Based on a vector lens and the top two vectors in said stack,
+-- Counts the amount of occurrences of the second vector in the first
+-- vector. Pushes the result to the string stack.
+instructionVectorOccurrencesOfVector :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorOccurrencesOfVector accessor state@(State {_int = is}) =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) -> state & accessor .~ vs & int .~ (amtOccurences v1 v2 : is)
+    _ -> state
+
 -- |This function parses the primitives inside a vector type and pushes that vector split into
 -- lists of size one onto the respective vector stack. Based on a vector lens.
 instructionVectorParseToPrim :: Lens' State [[a]] -> State -> State
@@ -392,7 +450,7 @@ instructionVectorParseToPrim accessor state =
     Just (x1, xs) -> state & accessor .~ (chunksOf 1 x1 <> xs)
     _ -> state
 
--- |Based on two lenses, one of a primitive type and the next of a vector type,
+-- |Based on two lenses, one of a primitive type and the next of a vector type.
 -- Sets the Nth index inside of the top vector from the vector stack to the top value
 -- from the primitive stack. N is based on an int from the top of the int stack.
 instructionVectorSetNth :: Lens' State [a] -> Lens' State [[a]] -> State -> State
@@ -402,34 +460,75 @@ instructionVectorSetNth primAccessor vectorAccessor state@(State {_int = i1 : is
     _ -> state
 instructionVectorSetNth _ _ state = state
 
+-- |Based on two lenses, one of a primitive type and the next of a vector type.
+-- Splits the vector on top of the vector stack with the top primitive and pushes the
+-- result to the original vector stack.
+instructionVectorSplitOn :: Eq a => Lens' State [a] -> Lens' State [[a]] -> State -> State
+instructionVectorSplitOn primAccessor vectorAccessor state =
+  case (uncons (view vectorAccessor state), uncons (view primAccessor state)) of
+    (Just (v1, vs), Just (p1, ps)) -> state & primAccessor .~ ps & vectorAccessor .~ (reverse (splitOn [p1] v1) <> vs)
+    _ -> state
+
+-- |Based on a vector lens and top two items of said stack, splits the
+-- first vector based on the second vector and pushes the result to the
+-- original vector stack.
+instructionVectorSplitOnVector :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorSplitOnVector accessor state =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) -> state & accessor .~ (reverse (splitOn v2 v1) <> vs)
+    _ -> state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
 -- replaces all occurrences inside of the top vector from the vector stack with two values from
 -- the primitive stack. The top of the primitive stack is the old value to be replaced. The second item
 -- in the primitive stack is the new value to replace the old one.
-instructionVectorReplace :: Eq a => Lens' State [a] -> Lens' State [[a]] -> State -> State
-instructionVectorReplace primAccessor vectorAccessor state =
+instructionVectorReplace :: Eq a => Lens' State [a] -> Lens' State [[a]] -> Maybe Int -> State -> State
+instructionVectorReplace primAccessor vectorAccessor amt state =
   case (uncons (view vectorAccessor state), uncons (view primAccessor state)) of
-    (Just (v1, vs), Just (p1, p2 : ps)) -> state & vectorAccessor .~ (replace v1 [p1] [p2] Nothing : vs) & primAccessor .~ ps
+    (Just (v1, vs), Just (p1, p2 : ps)) -> state & vectorAccessor .~ (replace v1 [p1] [p2] amt: vs) & primAccessor .~ ps
     _ -> state
 
--- |Based on two lenses, one of a primitive type and the next of a vector type,
--- replaces the first occurrence inside of the top vector from the vector stack with two values from
--- the primitive stack. The top of the primitive stack is the old value to be replaced. The second item
--- in the primitive stack is the new value to replace the old one.
-instructionVectorReplaceFirst :: Eq a => Lens' State [a] -> Lens' State [[a]] -> State -> State
-instructionVectorReplaceFirst primAccessor vectorAccessor state =
-  case (uncons (view vectorAccessor state), uncons (view primAccessor state)) of
-    (Just (v1, vs), Just (p1, p2 : ps)) -> state & vectorAccessor .~ (replace v1 [p1] [p2] (Just 1) : vs) & primAccessor .~ ps
+-- |Based on a vector lens and the top three vectors on said stack.
+-- Inside of the first vector, replaces the number of instances specified
+-- by the Maybe Int parameter of the second vector with the third vector.
+-- If amt is Nothing, replaces all instances.
+instructionVectorReplaceVector :: Eq a => Lens' State [[a]] -> Maybe Int -> State -> State
+instructionVectorReplaceVector accessor amt state =
+  case uncons (view accessor state) of
+    Just (v1, v2 : v3 : vs) -> state & accessor .~ (replace v1 v2 v3 amt : vs)
     _ -> state
 
+-- |Based on a vector lens, the top three vectors on said stack, and the top int on the int stack.
+-- Inside of the first vector, replaces the number of instances specified
+-- by the top of the int stack of the second vector with the third vector.
+instructionVectorReplaceVectorN :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorReplaceVectorN accessor state@(State {_int = i1 : is}) = instructionVectorReplaceVector accessor (Just i1) state{_int = is}
+instructionVectorReplaceVectorN _ state = state
+
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
--- removes all occurrences inside of the top vector from the vector stack where the top
+-- Removes all occurrences inside of the top vector from the vector stack where the top
 -- item from the primitive stack equals a primitive inside of the vector stack.
 instructionVectorRemove :: Eq a => Lens' State [a] -> Lens' State [[a]] -> State -> State
 instructionVectorRemove primAccessor vectorAccessor state =
   case (uncons (view vectorAccessor state), uncons (view primAccessor state)) of
     (Just (v1, vs), Just (p1, ps)) -> state & vectorAccessor .~ (replace v1 [p1] [] Nothing : vs) & primAccessor .~ ps
     _ -> state
+
+-- |Based on a vector lens and the two vectors on top of said stack.
+-- Inside of the first vector, removes the number of instances specified
+-- by the Maybe Int parameter of the second vector. Nothing removes all instances.
+instructionVectorRemoveVector :: Eq a => Lens' State [[a]] -> Maybe Int -> State -> State
+instructionVectorRemoveVector accessor amt state =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) -> state & accessor .~ (replace v1 v2 [] amt : vs)
+    _ -> state
+
+-- |Based on a vector lens, the top two vectors on said stack, and the top int on the int stack.
+-- Inside of the first vector, removes the number of instances specified
+-- by the top of the int stack of the second vector.
+instructionVectorRemoveVectorN :: Eq a => Lens' State [[a]] -> State -> State
+instructionVectorRemoveVectorN accessor state@(State {_int = i1 : is}) = instructionVectorRemoveVector accessor (Just i1) state{_int = is}
+instructionVectorRemoveVectorN _ state = state
   
 -- |Based on two lenses, one of a primitive type and the next of a vector type,
 -- removes the first occurrence inside of the top vector from the vector stack where the top
@@ -467,3 +566,24 @@ instructionVectorSortReverse accessor state =
   case uncons (view accessor state) of
     Just (x, xs) -> state & accessor .~ (sortBy (comparing Data.Ord.Down) x : xs)
     _ -> state
+
+-- |Takes a vector lens, a primitive lens, and the top of the int stack
+-- Inserts the top of the primitive stack into a index specified by the
+-- top of the int stack into the top vector from the vector stack.
+instructionVectorInsert :: Lens' State [a] -> Lens' State [[a]] -> State -> State
+instructionVectorInsert primAccessor vectorAccessor state@(State {_int = i1 : is}) =
+  case (uncons (view vectorAccessor state{_int = is}), uncons (view primAccessor state{_int = is})) of
+    (Just (v1, vs), Just (p1, ps)) -> state{_int = is} & primAccessor .~ ps & vectorAccessor .~ (combineTuple p1 (splitAt i1 v1) : vs)
+    _ -> state
+instructionVectorInsert _ _ state = state
+
+-- |Takes a vector lens and inserts the second vector on the vector stack
+-- into the first vector on the vector stack based on an int from the
+-- int stack.
+instructionVectorInsertVector :: Lens' State [[a]] -> State -> State
+instructionVectorInsertVector accessor state@(State {_int = i1 : is}) =
+  case uncons (view accessor state) of
+    Just (v1, v2 : vs) ->
+      state{_int = is} & accessor .~ (combineTupleList v2 (splitAt i1 v1) : vs)
+    _ -> state
+instructionVectorInsertVector _ state = state
diff --git a/src/HushGP/Instructions/StringInstructions.hs b/src/HushGP/Instructions/StringInstructions.hs
index cd241f1..4a56b38 100644
--- a/src/HushGP/Instructions/StringInstructions.hs
+++ b/src/HushGP/Instructions/StringInstructions.hs
@@ -5,13 +5,16 @@ import HushGP.Instructions.GenericInstructions
 import Data.List.Split
 import Control.Lens
 
+-- |Utility String: Whitespack characters.
 -- shamelessly stolen from https://hackage.haskell.org/package/MissingH-1.6.0.1/docs/src/Data.String.Utils.html#strip
 wschars :: String
 wschars = " \t\r\n"
 
+-- |Utility Function: Strips a string of its whitespace on both sides.
 strip :: String -> String
 strip = lstrip . rstrip
 
+-- |Utility Function: Strips a string of its whitespace on the left side.
 lstrip :: String -> String
 lstrip s = case s of
                   [] -> []
@@ -19,99 +22,136 @@ lstrip s = case s of
                             then lstrip xs
                             else s
 
--- this is a tad inefficient init
+-- |Utility Function: Strips a string of its whitespace on the right side.
+-- this is a tad inefficient
 rstrip :: String -> String
 rstrip = reverse . lstrip . reverse
 
+-- |Concats the top two strings on the string stack and pushes the result.
 instructionStringConcat :: State -> State
 instructionStringConcat = instructionConcat string
 
+-- |Swaps the top two strings on the string stack.
 instructionStringSwap :: State -> State
 instructionStringSwap = instructionSwap string
 
+-- |Inserts the second string on the string stack into the first string
+-- on the string stack based on an int from the int stack.
 instructionStringInsertString :: State -> State
-instructionStringInsertString state@(State{_string = s1 : s2 : ss, _int = i1 : is}) = state {_string = combineTupleList s2 (splitAt i1 s1) : ss, _int = is}
-instructionStringInsertString state = state
+instructionStringInsertString = instructionVectorInsertVector string
+-- instructionStringInsertString state@(State{_string = s1 : s2 : ss, _int = i1 : is}) = state {_string = combineTupleList s2 (splitAt i1 s1) : ss, _int = is}
+-- instructionStringInsertString state = state
 
+-- |Takes the first string from the string stack and pushes the first character
+-- back to the string stack as a string.
 instructionStringFromFirstChar :: State -> State
-instructionStringFromFirstChar state@(State {_string = (schar : _) : ss}) = state {_string = [schar] : ss}
-instructionStringFromFirstChar state = state
+instructionStringFromFirstChar = instructionVectorFromFirstPrim string
+-- instructionStringFromFirstChar state@(State {_string = (schar : _) : ss}) = state {_string = [schar] : ss}
+-- instructionStringFromFirstChar state = state
 
+-- |Takes the first string from the string stack and pushes the last character
+-- back to the string stack as a string.
 instructionStringFromLastChar :: State -> State
-instructionStringFromLastChar state@(State {_string = s1 : ss}) =
-  if not $ null s1
-    then state {_string = [last s1] : ss}
-    else state
-instructionStringFromLastChar state = state
+instructionStringFromLastChar = instructionVectorFromLastPrim string
+-- instructionStringFromLastChar state@(State {_string = s1 : ss}) =
+  -- if not $ null s1
+    -- then state {_string = [last s1] : ss}
+    -- else state
+-- instructionStringFromLastChar state = state
 
+-- |Takes the first string from the string stack and pushes the Nth character
+-- back to the string stack as a string. N in is the top int of the int stack.
 instructionStringFromNthChar :: State -> State
-instructionStringFromNthChar state@(State {_string = s1 : ss, _int = i1 : is}) = state{_string = [s1 !! absNum i1 s1] : ss, _int = is}
-instructionStringFromNthChar state = state
+instructionStringFromNthChar = instructionVectorFromNthPrim string
+-- instructionStringFromNthChar state@(State {_string = s1 : ss, _int = i1 : is}) = state{_string = [s1 !! absNum i1 s1] : ss, _int = is}
+-- instructionStringFromNthChar state = state
 
+-- |Takes the first two strings from the top of the string stack. Looks for and pushed the
+-- index of the second substring inside of the first substring to the int stack.
+-- If not found, returns -1.
 instructionStringIndexOfString :: State -> State
-instructionStringIndexOfString state@(State {_string = s1 : s2 : ss, _int = is}) = state {_string = ss, _int = findSubA s1 s2 : is}
-instructionStringIndexOfString state = state
+instructionStringIndexOfString = instructionVectorIndexOfVector string
+-- instructionStringIndexOfString state@(State {_string = s1 : s2 : ss, _int = is}) = state {_string = ss, _int = findSubA s1 s2 : is}
+-- instructionStringIndexOfString state = state
 
+-- |Takes the first two strings from the top of the string stack. Pushes True to the
+-- bool stack if the second string is contained within the first string. Pushes False otherwise.
 instructionStringContainsString :: State -> State
-instructionStringContainsString state@(State {_string = s1 : s2 : ss, _bool = bs}) = state {_string = ss, _bool = (findSubA s1 s2 /= -1) : bs}
-instructionStringContainsString state = state
+instructionStringContainsString = instructionVectorContainsVector string
+-- instructionStringContainsString state@(State {_string = s1 : s2 : ss, _bool = bs}) = state {_string = ss, _bool = (findSubA s1 s2 /= -1) : bs}
+-- instructionStringContainsString state = state
 
+-- |Takes the first two strings from the top of the string stack. Splits the first string
+-- based on the second string and pushes the result to the string stack.
 -- pysh reverses this. Check this for propeller
 instructionStringSplitOnString :: State -> State
-instructionStringSplitOnString state@(State {_string = s1 : s2 : ss}) = state {_string = reverse $ splitOn s2 s1 <> ss}
-instructionStringSplitOnString state = state
+instructionStringSplitOnString = instructionVectorSplitOnVector string
+-- instructionStringSplitOnString state@(State {_string = s1 : s2 : ss}) = state {_string = reverse $ splitOn s2 s1 <> ss}
+-- instructionStringSplitOnString state = state
 
+-- |Takes the first three strings from the top of the string stack. Replaces the first instance of
+-- the second string within the first string with the third string. Pushes the result to the string stack.
 instructionStringReplaceFirstString :: State -> State
-instructionStringReplaceFirstString state@(State {_string = s1 : s2 : s3 : ss}) = state {_string = replace s1 s2 s3 (Just 1) : ss}
-instructionStringReplaceFirstString state = state
+instructionStringReplaceFirstString = instructionVectorReplaceVector string (Just 1)
 
+-- |Takes the first three strings from the top of the string stack. Replaces the number of instances based on the of the int stack of
+-- the second string within the first string with the third string. Pushes the result to the string stack.
 instructionStringReplaceNString :: State -> State
-instructionStringReplaceNString state@(State {_string = s1 : s2 : s3 : ss, _int = i1 : is}) = state{_string = replace s1 s2 s3 (Just i1) : ss, _int = is}
-instructionStringReplaceNString state = state
+instructionStringReplaceNString = instructionVectorReplaceVectorN string
 
+-- |Takes the first three strings from the top of the string stack. Replaces all instances of
+-- the second string within the first string with the third string. Pushes the result to the string stack.
 instructionStringReplaceAllString :: State -> State
-instructionStringReplaceAllString state@(State {_string = s1 : s2 : s3 : ss}) = state{_string = replace s1 s2 s3 Nothing : ss}
-instructionStringReplaceAllString state = state
+instructionStringReplaceAllString = instructionVectorReplaceVector string Nothing
 
+-- |Takes the first two strings from the top of the string stack. Removes the first instance of
+-- the second string. Pushes the result to the string stack.
 instructionStringRemoveFirstString :: State -> State
-instructionStringRemoveFirstString state@(State {_string = s1 : s2 : ss}) = state{_string = replace s1 s2 "" (Just 1) : ss}
-instructionStringRemoveFirstString state = state
+instructionStringRemoveFirstString = instructionVectorRemoveVector string (Just 1)
 
+-- |Takes the first two strings from the top of the string stack. Removes N instances
+-- based on the top int from the int stack of the second string. Pushes the result to the string stack.
 instructionStringRemoveNString :: State -> State
-instructionStringRemoveNString state@(State {_string = s1 : s2 : ss, _int = i1 : is}) = state{_string = replace s1 s2 "" (Just i1) : ss, _int = is}
-instructionStringRemoveNString state = state
+instructionStringRemoveNString = instructionVectorRemoveVectorN string
 
+-- |Takes the first two strings from the top of the string stack. Removes all instances of
+-- the second string. Pushes the result to the string stack.
 instructionStringRemoveAllString :: State -> State
-instructionStringRemoveAllString state@(State {_string = s1 : s2 : ss}) = state{_string = replace s1 s2 "" Nothing : ss}
-instructionStringRemoveAllString state = state
+instructionStringRemoveAllString = instructionVectorRemoveVector string Nothing
 
+-- |Counts the amount of occurrences of the second string in the first
+-- string. Pushes the result to the string stack.
 instructionStringOccurrencesOfString :: State -> State
-instructionStringOccurrencesOfString state@(State {_string = s1 : s2 : ss, _int = is}) = state{_string = ss, _int = amtOccurences s1 s2 : is}
-instructionStringOccurrencesOfString state = state
+instructionStringOccurrencesOfString = instructionVectorOccurrencesOfVector string
 
+-- |Inserts the top char of the char stack into the top string of the string
+-- stack based on an index from the top int of the int stack.
 instructionStringInsertChar :: State -> State
-instructionStringInsertChar state@(State {_string = s1 : ss, _char = c1 : cs, _int = i1 : is}) = state{_string = combineTuple c1 (splitAt i1 s1) : ss, _char = cs, _int = is}
-instructionStringInsertChar state = state
+instructionStringInsertChar = instructionVectorInsert char string
 
+-- |Pushes True to the bool stack if the top char on the char stack is within the
+-- top string on the string stack. Pushes False otherwise.
 instructionStringContainsChar :: State -> State
 instructionStringContainsChar = instructionVectorContains char string
 
+-- |Pushes the first index found of the top char of the char stack within the
+-- first string in the string stack to the int stack.
 instructionStringIndexOfChar :: State -> State
 instructionStringIndexOfChar = instructionVectorIndexOf char string
 
+-- |@TODO
 instructionStringSplitOnChar :: State -> State
-instructionStringSplitOnChar state@(State {_string = s1 : ss, _char = c1 : cs}) = state {_string = reverse $ splitOn [c1] s1 <> ss, _char = cs}
-instructionStringSplitOnChar state = state
+instructionStringSplitOnChar = instructionVectorSplitOn char string
 
 instructionStringReplaceFirstChar :: State -> State
-instructionStringReplaceFirstChar = instructionVectorReplaceFirst char string
+instructionStringReplaceFirstChar = instructionVectorReplace char string (Just 1)
 
 instructionStringReplaceNChar :: State -> State
 instructionStringReplaceNChar state@(State {_string = s1 : ss, _char = c1 : c2 : cs, _int = i1 : is}) = state{_string = replace s1 [c1] [c2] (Just i1) : ss, _char = cs, _int = is}
 instructionStringReplaceNChar state = state
 
 instructionStringReplaceAllChar :: State -> State
-instructionStringReplaceAllChar = instructionVectorReplace char string
+instructionStringReplaceAllChar = instructionVectorReplace char string Nothing
 
 instructionStringRemoveFirstChar :: State -> State
 instructionStringRemoveFirstChar state@(State {_string = s1 : ss, _char = c1 : cs}) = state {_string = replace s1 [c1] "" (Just 1) : ss, _char = cs}
diff --git a/src/HushGP/Instructions/VectorBoolInstructions.hs b/src/HushGP/Instructions/VectorBoolInstructions.hs
index 50348d0..a69d00d 100644
--- a/src/HushGP/Instructions/VectorBoolInstructions.hs
+++ b/src/HushGP/Instructions/VectorBoolInstructions.hs
@@ -55,10 +55,10 @@ instructionVectorBoolSetNth :: State -> State
 instructionVectorBoolSetNth = instructionVectorSetNth bool vectorBool
 
 instructionVectorBoolReplace :: State -> State
-instructionVectorBoolReplace = instructionVectorReplace bool vectorBool
+instructionVectorBoolReplace = instructionVectorReplace bool vectorBool Nothing
 
 instructionVectorBoolReplaceFirst :: State -> State
-instructionVectorBoolReplaceFirst = instructionVectorReplaceFirst bool vectorBool
+instructionVectorBoolReplaceFirst = instructionVectorReplace bool vectorBool (Just 1)
 
 instructionVectorBoolRemove :: State -> State
 instructionVectorBoolRemove = instructionVectorRemove bool vectorBool
diff --git a/src/HushGP/Instructions/VectorCharInstructions.hs b/src/HushGP/Instructions/VectorCharInstructions.hs
index 5b4423a..c7a4fe7 100644
--- a/src/HushGP/Instructions/VectorCharInstructions.hs
+++ b/src/HushGP/Instructions/VectorCharInstructions.hs
@@ -55,10 +55,10 @@ instructionVectorCharSetNth :: State -> State
 instructionVectorCharSetNth = instructionVectorSetNth char vectorChar
 
 instructionVectorCharReplace :: State -> State
-instructionVectorCharReplace = instructionVectorReplace char vectorChar
+instructionVectorCharReplace = instructionVectorReplace char vectorChar Nothing
 
 instructionVectorCharReplaceFirst :: State -> State
-instructionVectorCharReplaceFirst = instructionVectorReplaceFirst char vectorChar
+instructionVectorCharReplaceFirst = instructionVectorReplace char vectorChar (Just 1)
 
 instructionVectorCharRemove :: State -> State
 instructionVectorCharRemove = instructionVectorRemove char vectorChar
diff --git a/src/HushGP/Instructions/VectorFloatInstructions.hs b/src/HushGP/Instructions/VectorFloatInstructions.hs
index 59a2ba4..b972685 100644
--- a/src/HushGP/Instructions/VectorFloatInstructions.hs
+++ b/src/HushGP/Instructions/VectorFloatInstructions.hs
@@ -55,10 +55,10 @@ instructionVectorFloatSetNth :: State -> State
 instructionVectorFloatSetNth = instructionVectorSetNth float vectorFloat
 
 instructionVectorFloatReplace :: State -> State
-instructionVectorFloatReplace = instructionVectorReplace float vectorFloat
+instructionVectorFloatReplace = instructionVectorReplace float vectorFloat Nothing
 
 instructionVectorFloatReplaceFirst :: State -> State
-instructionVectorFloatReplaceFirst = instructionVectorReplaceFirst float vectorFloat
+instructionVectorFloatReplaceFirst = instructionVectorReplace float vectorFloat (Just 1)
 
 instructionVectorFloatRemove :: State -> State
 instructionVectorFloatRemove = instructionVectorRemove float vectorFloat
diff --git a/src/HushGP/Instructions/VectorIntInstructions.hs b/src/HushGP/Instructions/VectorIntInstructions.hs
index c7e79e2..1eca9ac 100644
--- a/src/HushGP/Instructions/VectorIntInstructions.hs
+++ b/src/HushGP/Instructions/VectorIntInstructions.hs
@@ -55,10 +55,10 @@ instructionVectorIntSetNth :: State -> State
 instructionVectorIntSetNth = instructionVectorSetNth int vectorInt
 
 instructionVectorIntReplace :: State -> State
-instructionVectorIntReplace = instructionVectorReplace int vectorInt
+instructionVectorIntReplace = instructionVectorReplace int vectorInt Nothing
 
 instructionVectorIntReplaceFirst :: State -> State
-instructionVectorIntReplaceFirst = instructionVectorReplaceFirst int vectorInt
+instructionVectorIntReplaceFirst = instructionVectorReplace int vectorInt (Just 1)
 
 instructionVectorIntRemove :: State -> State
 instructionVectorIntRemove = instructionVectorRemove int vectorInt
diff --git a/src/HushGP/Instructions/VectorStringInstructions.hs b/src/HushGP/Instructions/VectorStringInstructions.hs
index faf6af2..9e0348c 100644
--- a/src/HushGP/Instructions/VectorStringInstructions.hs
+++ b/src/HushGP/Instructions/VectorStringInstructions.hs
@@ -55,10 +55,10 @@ instructionVectorStringSetNth :: State -> State
 instructionVectorStringSetNth = instructionVectorSetNth string vectorString
 
 instructionVectorStringReplace :: State -> State
-instructionVectorStringReplace = instructionVectorReplace string vectorString
+instructionVectorStringReplace = instructionVectorReplace string vectorString Nothing
 
 instructionVectorStringReplaceFirst :: State -> State
-instructionVectorStringReplaceFirst = instructionVectorReplaceFirst string vectorString
+instructionVectorStringReplaceFirst = instructionVectorReplace string vectorString (Just 1)
 
 instructionVectorStringRemove :: State -> State
 instructionVectorStringRemove = instructionVectorRemove string vectorString