How to re Tpose a mesh with a previous created rig?

#1

Basically what i want to do is pose my mesh again.
I already posed it 1 time and created a rig with zspheres while in T-pose. Now I want to put my model in a different pose but I can’t bring back the created Zsphere rig. Any ideas if its possible or do I have to make a new rig? :sad: