Add to a Deploy
When I go ahead and deploy a couple armies to attack a territory, I do that. However, when I go back later and want to deploy more to even out all of my borders, some have more deployed than others.
I would like you to be able to click a button, and then type in how many more you want to add, instead of clicking a whole bunch of times, or having to add really big numbers, such as 2734 and 3498 then subtract other numbers to see how many more I need.
I usually take dynamic turns, instead of deploying all armies, then attacking all.
In essence, you would click this, say if you wanted to defend your borders evenly, after attacking with a certain amount of troops.
You can use ctrl+click during the attacks phase to deploy armies and other hotkeys https://www.warzone.com/wiki/Hotkeys.