A relative has a very small 3/4 bathroom (shower, sink and toilet), but really wants a tub. It is part of the master bathroom. The bathroom is small (7'11" x 4'6") and the shower area is 4'6 x 3'2". Someone told me they'd heard about a combination tub/shower (maybe for disabled or elderly) that fits in a small space. Apparently, you can walk or slightly step into it like a shower, but it could also be filled up like a tub. Has anyone heard of this? Any direction of where to look would be appreciated. Thanks.