Polyphonic voices on a single-line staff

for my layout I need 2-3 polyphonic voices on a single-line percussion staff, e.g. 3 triangles on one system. How to do that?

Haven’t we already seen this question? Haven’t folks responded to it elsewhere?
Bumping topics wastes the time of the Development Team who read every post as well as fellow users who do the same.

Please do not duplicate or bump threads.

Well, thanks for your note. Unfortunately I didn’t find a fitting topic before. So I would be grateful if you kindly show me some helpful links or even a short explanation.

All the best,

To be precisely: How can I notate exactly THIS?