Senza Misura without time signature

I have to create a score where at some point, I have a long section without time signature (senza misura).
Is it possible to create a bar in the middle of a score like the first one Dorico creates for a new project?
Best regards

Shift-M the enter the letter x.
You can then hide the big “X” time signature through the properties panel

Thank you very much!
You saved my day!