I used Auto-Rig Pro to rig a character. Now I want to make animations like Idle, Walk, Run etc. all in the same Blender file. I believe that the correct approach is to create a new Action for each animation clip. (If this isn't correct, please let me know!).
Assuming it is, I can't see how to set the length of each animation action. Most of them I want to loop, so I need to set the length so it can loop and I can check the animation is correct.