I’m not aware of an option to “mass change” this but personally I also wouldn’t worry about it too much. Why not use both options for now? I’ll explain in a second, let me first answer that which I do know…
Although I’m not aware of an option to change this “en messe” there is an easy way to get a good overview:
- Open the ‘view’ toolbar, click on “Panes” and then select “Diagram navigator”. Note that you can only do this with a diagram open, so not within the project browser.
- Now find the “folder” icon in the icon bar, all the way on the right. Click it the small arrow next to it and switch to “diagram hierarchy”:
Ok, that came out a bit bigger than I wanted, but it’ll do. When done click on the first entry (the root note, probably called “trunk”). Then click on the small arrow next to the “collapse” option and select “expand”, this will expand everything. Warning: on larger projects this could take a little moment.
This will allow you to quickly spot all the underlying diagram relationships:
I marked the expand option here
If you look at the screenshot above you’ll notice 2 diagrams being linked: ‘Review preparations’ and ‘Writing a post’. So that’s a good way to tell that one (writing a post) is a sub diagram of the other.
So back to my suggestion…
Why not use both options for now? So leave everything as is, go over your project and the moment you notice that you need a link with another diagram then simply add that link by creating a reference.
See, if my theory is correct then you probably won’t have as much links as you think. Because as mentioned above: every time you assign an existing diagram to be a sub diagram then this diagram will get moved and unlinked from its previous diagram.
Hope this can help!