Development help needed

We want to create a solution / viewer where we can view CAD file with multiple layers and add links to the bottom layer which connect to external urls.

Sketchfab currently supports annotations which can contain a url. We would like the url to open without a text box first.

We have a CAD file of the outside of a building & a CAD file of the inside of the building. We want to combine them in a viewer, in such a way we can take the roof off. Then in the rooms we want to be able to add a url that will open, for example, a 360 photo tour of the room.

please let us know if you are interested and we are happy to go over it in more detail