double time signature with single-digit

[Andreas Stenberg]

Hi!

I need a way to modify the double time signature snippet in LSR to 
produce something where the numerical part looks like the single-digit 
time signature style: something lice
C 3 with both mensural sign and number centered around the central noteline.

Yours

Andreas Stenberg

ps. Would do this on my own but my "scheme" is rather rusty and rather 
short on time.