Request: cues on one line staffs (unpitched percussion)

Dear Dorico Developers,

Dorico does not create cue on triangle staff.
I have found a trick in the facebook:
https://www.facebook.com/groups/dorico/permalink/1993443240933418/

Could it be natively implemented in future version of Dorico?

best,
prko

It would be great if Dorico does not use two staves for this.

I think this is related to the availability of changing staff lines, but it seems not to be possible.
Am I right?

I’m not quite sure what you’re asking, but certainly you cannot change the number of lines in a regular pitched staff in Dorico.