you want to show 3D Object Models directly in the Metro-Forum? You can do that now by simply adding a #Sketchfab
Object. Simple example: click the Sketchfab icon in the editor and link to "https://sketchfab.com/models/5d206cd4ac94495bb4cdc1a052353771
And you will get this:model
PS: For showing opensim objects in the same way we are working to get Dahlia Trimble's PrimMesher running in the Metro-Forum. Stay tuned.