Need Help in custom movement

Hi construct community, I would like some help about my game. I have several problem that I have to fix by myself but one of these is too dam difficult to resolve. My problem is, when I set key 'q' pressed-/-play animation -/-. I want to set this key as an aimming stand. Sorry for my english, it is not my native language for more precision, I'll explain more.

Also I set my controls as WASD for the running jumping and climbing. When I pressed Q its supposed to set another animation for the aimming. I want to control my character while is aimming to. Arms is supposed to follow mouse etc.