Do you use the focus function in the UIv4 resources tree? Why or why not?

I use it regularly in UIv3, but often mis-click in UIv4 and focus when I don’t want to. It’s not something I need to do often enough to feel it needs as much attention as it has in the new UI.

Honestly, I use it 1 out of every 2 times simply to force a refresh on the screen, as it allows me to click the top group to reload the modules beneath it in UIv3.