"Importing" new music symbols?

The new music symbol editor is very helpful, so I replaced a breath mark with an alternative symbol. This procedure is very simple to do, but I have to do it with nearly 100 projects. How is the easiest way to “import” the new breath mark in all 100 projects? (For future projects I will store a template with the appropriate settings, clearly.)

There’s not really a good way to do this at the moment, I’m afraid. The only way you can do it at the moment would be to import the flows from each of those 100 projects into a project that already contains those items.

Thanks, then I think this will be the best way for the moment. There are additionally settings in notation options required, too.