I've only just bought notum wars, and i havent investigated tower building yet (as i'm only level 8 but, say i open the map (ctrl+4) then close it again, then for example press ctrl+1. if i hold shift to inspect my leg armour, one of the 3 buttons will appear, also if i move left to right with the mouse, the other 2 will turn up, it's more annoying than anything else because it doesnt totaly cover anything and they go away once ctrl+1 is pressed again