Use the Force Note Duration (clamp icon, or the “O” key) option to enter rhythms that defy the common interpretations of the time signature. If you use the rhythmic pattern consistently, you could define the meter via the popover as [2+2+2+3+3]/8.
Your question is about how to subdivide rythmically a 12/8. As seen here on another thread (advanced search for +dorico +metric +subdivisions), you press shift+M. In the popover you can tell Dorico that you want [2+2+2+3+2+1]/8
This is just what I need, but I do need to know more because as soon as I press enter or exit it goes back to what I had.
The shift+m dialog box also show 3/4 when my time sig is 12/8
I see the popover, makes sense, I know how to do this in sibelius but the popover says 3/4 can’t see how to change it to 12/8 I enter (222321)/8 then what do I do?
If I press enter nothing changes.