My apologies, I misworded something. The "Not" is incorrect. I've corrected it.
Basically, when I select a set of characters, ADS highlights the other occurrences but doesn't select them. This way, if I type, I replace the characters in the selected instance, but not others.
CTRL+D selects the next occurrence of the characters. If I keep pressing it, it continues to select additional occurrences until they are all selected.