Where would I find and example of this weld (or CFrame) on the Wiki?

I'm trying to find a wiki page that I saw a bit ago, (Can't find it in my history odd enough). The page was teaching about connecting two parts away from each other with a part in the middle that was between the two of them and still connected.

https://gyazo.com/b3a08fb19e6eabf4db5d8b09d99d2b21

This is an example of what i mean (I used the Admin script Epix)

I'm just looking for the Wiki page link (if it does exist)

It is a Selection Lasso, however, it is deprecated. Hope this helps!