How to split a single column into multiple columns?

[vigridian]

Hi!

I'm looking to make a simple row selectable table but I only have a single column of data. There's quite a lot of rows so I don't think pagination would be convenient. Is there a way to make it so the single column is split into multiple columns like such?

[ ] item 1 | [ ] item 4 | [ ] item 7
[ ] item 2 | [ ] item 5 | [ ] item 8
[ ] item 3 | [ ] item 6 | [ ] item 9

I've tried using css like columns: 3 auto

Thank you.