The new hotkeys for generals are nice but what would work best is unit groupings. It would really help manage the army as it is still rather difficult now and forces the general to just be one giant army vs flanks and such. Generals can still be focuse fired on by units like regalus and sending minions on enemy DG hunts is rather difficult.
The general should have counters of how many summoned units they have and what types all in one place. With the general's army and regular units its impossible to tell units appart and how many of what you have.