Adjusting character pose while paused while keeping current pose

In your tutorial video you are pausing the gameplay and adding an animation layer to a character, however when I attempt to do the same thing, the character is changing to its default T pose to adjust, instead of being able to adjust it on the same pose its currently in while the editor is paused.  

I need to adjust the hands of a character while holding different weapons.  I was hoping to pause the game each time they are holding a new weapon.  Then fixing the fingers.  Then saving out the new hand pose clip.  Is this possible?