I unbinded F2 and F3 while trying to disable the quickchat menu and now I don't have access to the point shop (F3). I don't know if F2 does anything but I would like to re-bind it if it did.
Since you'd unbind your F1, F2 and F3 respectively. These are its default commands. This is how you bind keys. bind <key> <command> For example, bind F1 gm_showhelp