I remember in the other Total War games, there used to be a feature (Game option?) called Auto-Consolidate Troops. It would make sure that each turn the stacks of troops would always move troops around so that you wouldn't have 12 stacks of spearmen of 33, 21, 23, 45, 32, 12, 54, 54, 21, 24, 34, 29 troops, respectively, instead you'd have 60, 60, 60, 60, 60, 60, 22.

I can't seem to find this option in M2TW, and the constant plagues are causing me to spend at least 5 minutes each turn to consolidate troops left and right.

Any ideas?