A small update for today.
Suppose you have a mod with an Iron Swordsman, and 10 flavour version of the units. They are identical, except they are not for the same civ, don't have the same name, animations.
After some testing, you decide the Iron Swordsman doesn't cost enough, and is to weak.
So you would ahve to go to each of the 11 versions, and change the attack/defense and cost one by one.
Or you can right click on the Iron Swordsman, select copy unit, then select your 10 flavour versions (easy if you put them just after the Swordsman), right click on them and select "paste to selected units".
You select in this window what fields you want to keep or copy, and then it's applied to all the selected units at once.
Tomorrow, I'll do a tool to reorder the "creation" order of units, and then options to sort/filter the units differently in the main list.