Quaver upbeat for Cut C

I was just wondering whether anyone might know how to persuade dorico to give me a quaver upbeat into cut C, at the start of a piece. I’m transcribing something late 17th century. I’ve tried hiding time signatures, but that doesn’t seem to work? Any advice much appreciated.
Thanks so much!

Gumbe, try this: in the Shift-M popover type:


Amazing. Thanks so much - I’m still adjusting to the idea that spelling things out like that works!