tenuto fingering: 3t, 2t, 4t, etc.

[Federico Bruni]

Hi all

How can I create custom fingerings which are made of a number and a 
letter?
I want to display 3t, 2t, etc.

I found this snippet in the LSR:
http://lsr.di.unimi.it/LSR/Item?id=83

but it allows to use only one character.

Thanks in advance
Federico