It's indeed very promising, but I think modders will need some time to get used to it. Because contrary to civ, you don't have a big window showing all the current parameters of your unit, as you see only what you want to change specifically.
Imagine looking at the Cossacks in the editor, and seeing only MP+1.
One last screen for today. Just a test shot.
Here is how the things will work. Let suppose we are in the initial attack phase.
When you move the mouse on the map, the cursor is an arrow (for the moment it's just basic windows cursors, I will make it better letter if an artist can help).
When you move other a unit, ennemy or friend, the arrows become a hand. So you can select the unit, even ennemy ones, to get some information (in the right pannel).
By default, it's the "top" unit which is selected. If you want to change it, you can do by right clicking on the unit, and choosing which units you want to select in the contextual menu.
Now, if the selected unit belongs to the current faction (ie it is your unit), and it has a range weapon, it can use it to attack someone.
However, to give the attack order, you need to activate the "attack" mod, just by pressing the CTRL key. Then, if you move the mouse other a unit, the cursor becomes a cross. If you click then, your unit attack (yes, it means that you can shoot at your own units, be careful!).
To sum up: click on unit without CTRL selects it, with CTRL it attacks it if the currently selected unit is yours and has a range weapon.
Then, a small message will say what happens: here the French infantry attacked the two British infantry stacked in the square.
And yes, it means that every unit in the square is attacked as the same time (but obviously, the attack will be spread somewhat).
This report message is temporary, I will make a much nicer one, with colours an icons

.
You can also notice something. The report just says that the French attacked the British. It doesn't tell the result.
This is normal, as the result will be known only after everyone attacks.
So if the French attacks the Highlander, the British player can in the same phase ask the highlanders to attack the French.
So 1200 French will attack 2000 highlander, and the 2000 highlanders will attack in return.
Here, as the highlander are partly protected by the forest, it is likely the French will meet a gloomy fate...
