NecroButton – An alternative table for raising undead.

I repeated everything, but for some reason it doesn't open, it only closes when I press "F".

I took a quick look – in the Info.(WindowMSButton).xdb file, in the GameMessageReactions section, you need to display the window (Info.(UISSendUIMessage).xdb) and not hide it (InfoHide.(UISSendUIMessage).xdb)