[sralbert]

After checking "I am an advanced user" you will see a grid like the first image on this page when you click the more button:

https://github.com/gorhill/uBlock/wiki/Blocking-mode:-medium...

From there you can block 3rd party scripts and frames. To save the rule you need to commit it in the "My rules" pane by clicking on the temporary rule you added.

[Normille]

Ah. Got it. Thanks. I think I'm going to have to spend some time reading uBlock Origin's docs. I've pretty much just left it on default settings up to now and used uMatrix for all my individual site tweaking.