We have the same problem in our Augusta and we also just hang it over the shower wall and the hand towel we hang on the knob of the med cabwe just drape them over the shower walls. really works well. actually we do the same thing at home.
The Key Largo comes with a Towel Bar attached to the Shower door. We did however add one of those brass medal hooks up on the cabinet above the sink and next to the shower.
Ask and ye shall receive. In ours, we hang towels on this over the door rack we got at either Walmart or BB&Beyond, or someplace like that. Had this in our TT. I also mounted a standard towel bar under the cabinet over the commode, using machine bolts and washers to attach it. When we use the shower, we open the cabinet door a bit and slip the towel rack over top of it, or just lay it outside on the bed. I secured the rod for the towel rack in place with clear epoxy to keep it from coming apart.
HEY JOHN, when did you go into our unit in Goshin and take the pictures of out bathroom fixtures. I thought the keys were unique and would not open other trailers.