I appended a group from another file, but not the original mesh/rig

and now I realize I have to change som textures and animation tracks…

Do you know a way to append the original mesh/rig from the same file that the group was appended from in a way so that the group that was first imported can recognize the mesh/rig that it stems from?

hahah, this is really tricky - but not funny at all because I have multiplied the group in several scenes, in various positions, its gonna be a nightmare to start from scratch again. :eek: