So i wonder if there is there a way to flip keyframe that i selected in the timeline?
I made an animation of a character truning is head and body to one side and i would like to know if there was a way just like in Blender to flip the keyframe of that animation to put my character back in his original pose so that i dont have to animate to turn back.
If I understand what your asking, do the following.
Make sure auto extend is selected.
Select your subject and then modify-animation-edit motion layer.
Copy pose for the pose you want to return.
Move curser to the time you want the returned pose to be completed.
Open edit motion layer and paste pose.
auto extend should give a smooth transition back.
In addition, you could collect the original motion and then apply it later in the timeline, then reverse the clip.