How can I open more than one TAB at once?
Shift or CMD (on Mac) to select more than one part is not working?
Open all would be great…
…may it’s a feature request 
HZ’s
You can’t create more than one tab at once, but of course you can hit Command-T multiple times to add new tabs one after another. I would advise against having too many tabs open at once, as every time that you have open adds to the computational work that Dorico is doing in response to every edit. For small projects it’s OK, but for larger projects you will find it makes editing slower.
Thanks!