Mostly for websites that require special characters in their passwords. Ideally something like the current mutators, where we can chose to add a number to the start of a word, end of one, anywhere, etc. Also allowing us to chose to add 1, 2, 3, etc for
sites that require multiple of each (ex 2 upper case, 2 numbers, 2 special, etc).
It would add a lot more flex ability.