I see hidden things
All you do to see the inventory in a room is right click in the room and select inventory. Then in the URL in your browser add -e after imvu before the .com and wait for the add and then hit skip and you can see the hidden outfits and products in the room.
You can do the same thing when you are looking at a developers catalog to see hidden things but it doesn’t let you buy them. Side note: if you’re a developer if you let your VIP expire for a month anything before then can’t be seen and is safe from prying eyes, though that means giving up your categories and whispering etc for a month, which I’m doing now.
The outfit trick is neat and I often open and save the inventory URL in case I ever want it. There are a lot of other great tools at imvu-e.com. It’s a great resource.