I see this being asked over and over on IRC and I think mIRC should have it, people often want to add a ':' after the nickname when they are using tab completion. It can be scripted with on tabcomp but it's typically non technical users who would like to see this, and it's not really that easy to do. However it would be easy to add to the existing code mIRC has for it, with a little checkbox in alt + o > IRC > options


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