Violin clef in Drumset piece with percussion clef

I'd like to add some notes in violin clef even if the whole piece is in percussion key. This is useful when playing with ensemble or orchestra, because percussionist see what does other instruments play before his entrance. It is common way of writing orchestral parts. For example:
http://i.imgur.com/CS2AYMi.jpg
I'd like to add these little notes written in violin clef to be the hint for percussionist.

Edit:
Here is Marc Sabatella's comment on this feature:
https://musescore.org/en/node/65171#comment-296806