In the earlier releases of xLights 2016, I remember there was a feature checkbox called "In My Display" that I presumed was used to hide/show individual models from appearing on the layout tab. That seems to have been removed, because for the life of me I couldn't find a way to temporarily disable some models from the viewing screen, short of deleting them altogether.
There's gotta be a better way. I would find this to be helpful in the scenario of testing out new, or alternative model ideas to see how they might look- before committing them to all of your sequences. Can this be done using an existing feature I haven't discovered yet, or added in a future release?