Right mouse click twice to select another unit?

[Toltrin]

It should work like this:

Left mouse click a unit.
That unit is selected.
Right click afterwards to were it will move or attack.
Left click on a unoccupied area (hex) or another unit and that unit is deselected.

-or-

Double left mouse click a unit.
All of that same unit are selected (maybe all in that hex).
Right mouse click to where it will move or attack.
Left click on a unoccupied area (hex) or another unit and that unit group is deselected.

As RTS gamers, this is the convention we are used to in the dozens of RTS games we have played.
As the way it's designed right now, it doesn't feel like I have full command of the units I place on the board. It's almost like the game gives me permission to do this and that and impedes my ability to think tactically.