I searched the board and couldnt find this, but I think it would be an interesting addition to add a $tabkey(N) identifier (or something similar) that would return which additional keys are being held down whenever the TABCOMP event is triggered. If N = 0 the total amount of keys held down is returned. In this way you could make various snippets of code trigger based on key combinations with the TAB key. This could be useful to make tab do things other then just complete nicknames. (like spell checking, URL history, and even override CTRL+TAB etc..)
Thanks!