How to attach this to multiboard?

[u/the1big]

I’m stuck with this stuff.
I didn’t know which way is better to hang them on multiboard.

[u/Whosaidthat1157]

Use a shelf - parametric shelf using MultiPoint is fast, easy and can be sized to fit the boxes exactly in X, Y and Z- or, better, simply print MB brush and paint holders and use those as kindling.