There are times when you can't login to the game but where you want to move your troops. Either to dodge an attack or send support or initiate and attack. If there was a unit movement queue that you could set when and which units were to go where it would eliminate this problem. The downside is that if your situation changes and you are not logged in the unit movement would happen regardless. The upside is that you aren't at a disadvantage just because you can't be logged in 24/7.