Template page for playbacks/sub playbacks

I really wish there was a template page option for playbacks and sub playback pages.

Basically any occupied playback/sub playback on the template page would automatically populate every other page UNLESS there was already an existing contents on that playback then it would hide/override the template playback.

This way if you have i.e. some crowd blinders or maybe an intro scene it populates across all pages without having to copy over and over