Word of caution: Process #1 as shown in the video CANNOT be used to to completely remove a Master Page from a Child. Doing so will obliterate your page and any past versions of it, which will prevent restoring if you accidentally try this.
Word of caution: Process #1 as shown in the video CANNOT be used to to completely remove a Master Page from a Child. Doing so will obliterate your page and any past versions of it, which will prevent restoring if you accidentally try this.