Seperating Barracks and Spell Factory Queue
I find it fairly annoying to try to spread out my queue among my barracks as much as possible with the spell factory queue unexpectedly popping up when I'm about to supposedly queue a goblin (due to muscle memory), and turns out queuing an extra rage spell.
I don't know if this is the same with dark barrack troops because I'm not that far, but you can also apply the same idea if all the queues are connected.
Sorry if this has been suggested already. I couldn't find it in the sticky of suggested idea.