There is a duplicate of this post in the regular forum, thats because I did the wrong one the first time. I wanted this to live here though, so I posted it again.
Since Motion 5 came out I have been having a hell of time dealing with publishing the checkboxes for layers or groups. The only way I could really do it was rig opacity on my groups and then publish the rig. Well, I found a way that you couldn't quite expect. I was trying to change the out point of a layer, so I figured I could maybe publish the Timing panel in the inspector. Well, you can publish it...but it doesn't publish what you would expect. You could think it would publish the timing pane, but instead it publishes a checkbox with the name of the item you are selected on. I was like...what?!?!? Could I finally have found the way to publish checkboxes....and indeed I did. Works on both layers and groups. Someone told me you could use snapshots to do something similar...but I could never get that to work. Anyways, let me know if any of you guys already knew this and if its helpful at all.