Board Thread:Support Requests - Designing Your Wiki/@comment-44745594-20200424221110/@comment-9605025-20200425182710

That is because this "feature" is implemented using custom JS. If you have a UCP wiki (i.e. a wiki created on or after March 11, 2020), then implementing this is currently not possible as UCP wikis do not yet support custom JS. If your wiki is not a UCP wiki, then you will need to implement or copy the appropriate JS.

It appears that the wikis you linked to each have their own custom JS so you would need to decide which style you want and copy the corresponding JS. Alternatively, you can look at this list of custom JS and see if any of the listed sliders are to your liking.