Ability to do bulk updates to multiple VertiGIS Studio Web apps via Item Manager

We would like to update the custom basemaps across multiple VertiGIS Studio Web applications. I was hoping I could use Item Manager to make an edit to the json that would update across 'all' our organizations VertiGIS studio Web apps. Instead, I have to edit each app individually. It may be that this use case is better met by having the custom basemaps synch with the Portal basemap gallery but I figured there might be a more broader desire to use Item manager to update multiple VertiGIS Studio Web apps via Item Manager.