Combat toggle, and related
1. You have away to disengage combat. Kill what ever is attacking you or run away. You should have to deal with the consequences of aggroing something not just map travel.
2/3. These sound very reasonable. I find that I try to hit esc to cancel a skill and that just brings up a menu hiding me while I finish using the skill. Not exactly the effect I was after!
For #1, I am also referring to the period of time after I have already killed something..the mob is dead, and my skill is still activating, and/or I am still in an active combat stance and unable to return to normal status for several seconds.
If my minions or summons are engaged with a mob, I should be able to either disengage them and deal with the mob myself, or leave them to it and disengage myself, from active combat. If I have no target, and nothing is targeting me, I should be able to exit combat status manually, instead of having to wait for the timer to run out before I can do things like map travel, or talk to a vendor.