Sign for Flattement (Finger vibrato)

[Franz-Rudolf Kuhnen]

Hi,
I'm in the process of re-setting suites from Pierre Danican-Philidors op.1. 
Philidor is one of the few composers who mark exactly where a flattement, i.e. 
a 
finger vibrato, should be played. He does this with a wavy line over the 
corresponding notes.
This sign differs from "\prallprall". In addition, as can be seen in the 
example, it 
should be between the two notes.
Can someone help me?
Thanks in advance.

Regards
Franz-Rudolf Kuhnen
https://www.kuhnen-musik.de
https://noten.kuhnen-musik.de
http://www.alte-musik-am-mittelrhein.de

flattement_p.danican-philidor.jpg
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