add "fingesnip" notation into a vocal part

Hi all, I use Musescore for making vocal adaptations for my Pop/Jazz sextet. I can't figure out how to add a body-percussion line into a vocal staff... I want to have our tenor singing his line and add finger-snaps on the 2 and 4 for a short passage, and therefore I want to have this fingersnaps notated on his own staff, instead of having to add an entire drum staff. Can this be done? And how? Thanks for helping me out!
I have a second question, about multiple times switching between "swing" and "straight eights" in this arrangement, see my next post.

Doesbrand

(See the attached arrangement of Love Is All [Roger Glover], in this arrangement I want finger snaps form m83 until the end)