barracks upgrade

sometimes the training time in baracks is to short , theres speed up but not slow down so i think that you should be able to choose the training time by level . say you have level 20 baracks and wanna train 599 cav and your not gonna be around when it finishes and want it to take another 2 hours you can adjust to a lower level and . this would be convenient if you train alot of troops all the time and you sleep longer than when your troops are gonna finish
everytime i train troops b4 i sleep i wake up a half hour late and my troops are killed

thaqt would go against the rules. and it would be unfair for people trying to attack you sneakily