While I haven't used it, it sounds like your first request could be resolved through the usage of a 3rd party DLL called NickLust.dll
Regarding Feature Requests, just use the proper forum on this site, as Khaled monitors it and does not differentiate between requests made by users that have registered mIRC and those that haven't.
I believe (although it's been a while) that you must be registered on this site in order to post a message (irrelevant as to which forum)
