DS4.5 Pro Surfaces - UV Set selection options
I'm using DS4.5 Pro and have a question about the Surfaces tab, and the UV Map selection process.
When I create a scene using a Genesis character, I am able to apply textures from other models by selecting the Surfaces tab, and then selecting the appropriate UV model map from the UV Set drop down menu. (see #1 in the attached image).
If I save the entire scene ( see #2 in the attached image) , close DS and then re-open DS at a later time and then open the file that I saved, I no longer have the option to apply new texture on the model if it was not specifically created for that model (see #3 in the attached image).
When that happens, what do I need to do to restore the UV Set selection options to that file?