Feature request: branch content preview in main document

Hi!
My team has moved all projects to a new main/branch structure. Which implies the work of several designers on one main doc. In order to avoid overlapping layouts from different branches when creating new branch, we have to check all existing branches. My idea is as follows: Preview All Branches button in main, after clicking on which the content of the branches will be displayed in a translucent form.

And thanks a lot for this fantastic branching feature!