Allow Accessories to have Accessories

I've asked for this, and I know others have as well. I can't think of any exact scenarios where I've wanted this, but I think movies and golf simulator are a couple items. There are so many options with each of those, I think one scenario looks something like this:

Movie night is the main rental item, then you select whether it's a backyard movie, movie in the park, or drive-in. From there you select a screen size, projector, sound system, and other options. It works having a long list of accessories to choose from, but there are parts of this that would make more sense if the accessories had accessories.

Golf simulator is similar. Depending on whether it's indoor (darkened space) or out (daylight), each of those has its own set of options to choose from: Which enclosure, screen size, launch monitor, TVs/projector, video and audio cables, wireless casting device, etc.

I think there are some much more common scenarios where this would be useful. I'll let you know when one comes up.

Maybe photo booth? Photo booth is the main item. Then you select from 20 available backdrops (accessories). Some of those backdrops require Frame A, and some require Frame B, of which you only have one of each, but you have two booths. If both booths are booked, and one of them has a backdrop that requires Frame A, you don't want the other booth selecting a backdrop that also requires Frame B. I don't know if this is a good example or not.

Bulls are the big one I was forgetting! We have 3 mechanical bull bases, 4 bodies, 6 inflatables, and one option to run a Log Jammer (or whatever it's called) in place of a bull body. Some options are interchangeable, and some are not. Because these are among our most popular items, and each event has its own needs, it would be a lot easier to manage if we could build each of them in steps.