- You were trying to place a structure when you needed to control troops? At the bottom of the sidebar when controlling troops there's a cancel button, which is hotkeyed to escape. That'll take you out of placement mode. Right clicking to cancel would be problematic, since it's used for panning the camera.
- I'm seeing a lot of feedback around that. I'll see about toning them down a little.
- Reworking happiness is a major part of 2.4, see the most recent dev log for details.
Thanks for the feedback