I just figured it out. It should be installed by BWS and during installation there is moment for creating multikits but they can be installed only after BWS by running m7multikit.exe. There is just like 10-15 seconds delay when running m7multikit.exe before it starts doing anything because of enormous size of game folder after BWS. m7multikitsetup was just my error writing post sorry
I will provide You with debug files for EET but first I would like to ask You to check something else. I just tried to create F/M/T on fresh BG2EE install. No mods, latest version. Ken/Normal Mage/Swash doesn't install because of known error with clab:
"Cannot append column-wise because there are 13 lines in clabfi01.2da but I was only given 11 things to append" (removing xp cap would help I think)
Ken/Ilusionist/Swash install no problem. Kit is given in game no problem. I level up... no thief points to invest in skills.. i level up again... nothing..
Everything other then thief skill points seems to work however.