I made a playlist by creating an embed iframe with src: https://sketchfab.com/playlists/embed?autostart=1;models=MODELID+MODELID+MODELID. I noticed that I will get 404 error if I add some of my private models there. Is the only way to use private models in a playlist to make a playlist in sketchfab and use that URL?
Also it would be nice to use other embed options in playlists also, like ui_controls=0 etc. Is this also possible?