How to add in Markers/Pens in Unity, in my VR World?

I’m building a VR chat world in Unity, I would like to know how to add in a wall of Markers/Pens with a bunch of different colors. I seen this in many worlds and I would love it in mine.

A bit searching would’ve helped, but you’re probably referring to QV’s pens which can be found here:

they work for both SDK2 and SDK3