(It's still October somewhere.)
New Features
Controllers: Show setup support has become a real feature, with discovery, configuration upload, port maps, wiring diagrams, and so on. When coupled with the cloud service, you can see your entire show setup on your phone without being on your LAN...
Hmm, I see a flaw in my plan. The playlist is only available when the player is running because only the player knows it. Maybe I need an export feature.
https://dev.ezplayer.dev/shows/moc
As of now...
Yes, 3D is a little harder. There is a box (orange usually) in the middle of your prop and if you click it it switches between move, scale, and rotate.
However, my suggestion is to start by placing a ruler object in your layout, then set the dimensions of the props in the property grid...
Did you upload the configuration to the controllers. And how are you trying to send the sequence, the light bulb (output to lights) in xLights or another way?