Thank you! I think I have it working now. The only remaining frustration is that I need to allow this role to add Drag and Drop files, but I don 't want to give access to the File Cabinet. From what I'm reading, this isn't possible yet. Thanks again, everyone!

@Michelle Jabanes-Oracle Unfortunately, those are the settings that I already had in place in the custom role, so that didn't resolve it. I did try making a new custom role with those same permissions, but using the Classic Center instead of the Return Center. I think I am closer to success with that, however, there are so…