is it ANYHOW possible to bypass some variables $usermode wile online ? so if usermodes are +ixw if i can somehow set it to +aA but not for some illegal purpose, just for fooling mirc so i can debug some things ?

You cannot change what mIRC's in built identifiers return. And even if you could, the server you are on won't accept those usermodes unless you sent a MODE yournick +aA command and it replied telling you those modes had been set on your nickname. So, I don't see what debugging purposes this would be useful for

ye, i know that, i only wanted to debug for some popups that are defined for A umode to have...

tnx anyways

Where you have $usermode in the popups, change it to $usermodes and have a custom identifier to return those:

alias usermodes return +aA

Then test them and change it back once you're finished