Looking For A Tutorial On Making A Ingame Slider (Non UI)

So Looking at the content examples and the math lab example they have sliders that you can move on the wall , Could somebody guide me to a tutorial on how to make these?


do you speak french ?

because meletou1 made a video about that (not a pure tutorial from scratch, but it use the exact slider from the math examples and explains how to build it)
on youtube, there should be an english counterpart from somone elseā€¦