Animation Solver HELPPP!

Hi, i am search for one mouth, i need ajust a animation but the animation is 275 frames, i dont like a idea to ajust frame by frame, i explain i have a animation one human with a weapon(rifle) in idle mod

i need to ajust the right hand and aproximate to left hand, and magic! the animation with a pistol :smiley: :

but in the next frame is turn back to default animation, then i need to ajust frame by frame :cry:
how i animate all frames ?
i use motion builder.

You need to create a new animation layer and work with that.

If you have a Digital Tutors account: http://www.digitaltutors.com/lesson/9324-Correcting-the-retargeted-animation-with-animation-layers

I dont have a acc :frowning: theres another link ?