I have an internal master project overview board, where each item represents a project and the sub items each stage of the project. each stage of the project has a timeline. I also have individual client boards which are shared with clients as Guests. On the client board the items are the subitems from one fo the items on the master board.
I want to be able to edit the timelines on the mast board and have these reflected in the individual client board.
Mirroring is an issue as the clients are not invited to the master board. Plus all internal staff are not invited to all of the client boards.
How can i set this up?