mIRC has auto complete activated by the TAB key, but I request that there be an extra configurable list for auto completion. For example, in this list I can add "completion" and as I do with nick completion i type "comp<tab>" and i get completion.

yeah, /alias auto complete should be also implemented. And maybe a possibility to add : after completed nick.

I'd like to see "Nickname:" completion added too. I have a scripted version but it's a royal pain to adjust when I change other inputs.