Is there any way to do this without having to create a whole new "C" combined listing? I have lots of photos and text in my two listings (main house and studio) and would like to link them in a combined listing without uploading all that material again. Also, any time I update anything in A or B, I would have to update it in C as well.
So maybe what I'd need is a 3rd listing where I only need to REFER or Link to A and B. It would allow viewers to see the A & B content, maybe by clicking on House or Studio, and allow them to book both at the same time on listing C.