Alt-A shortcut not woking in Single window mode
Put gajim into "Single window for everything" mode and set compact chat window layout (e.g. no "toolbar"). Normally, Alt-A will open the "advanced functions", but in single window mode this shortcut will not work because it just opens the main menu of the roster.
IMHO there are two things that need to be addressed here: 1.) the shortcut should be changed to work the same in all modes 2.) all the functionality of the "chat toolbar" should be available through the menu as well (the menu should include "advanced functions" somewhere)