The BG2 mod TobEx
has an option for this already ("Tooltip Scroll"). Therefore it is likely hard-coded in the
EXE because that is the stuff TobEx fixes. Not sure if it does what you want enough though
because I've never compared the difference. Note: this mod recommends to be installed first
in mod order, even before the Fixpacks.
EDIT: Yes it works. Just loaded up a game and the Cursed Berserking Sword +3 fits in the tooltip
Yep seems that it works.... Now I just gotta uninstall all the mods in my main game and install this first... Anyway thanks for your help.