Digital Signage, inheriting scheduled content

[vincent45]

I have created a Digital Signage Only "campus" (location?), with buildings, and rooms and digital-signage-only devices assigned to those rooms. (All normal zoom rooms and conference devices are in a different campus.)

All the Room Settings/Digital Signage had content library items applied to them temporarily, which I want to remove/override, replace with content from Content Library scheduled at the Campus level. Set once, publish everywhere.

I've done this, but when I remove what I think is room-specific content, the Campus-defined content doesn't trickle down. Just default background plays.

Is there a trick to this?  Have to Publish (but does that maintain Digital Signage content Schedule setting?)