The 'Finder Locations' thing seems to not work, for me at least.
I added my home dir, plus about 4 external disks (but not the root of the boot volume). No matter what I try (including relaunching finder) the menu items appear for my home dir, but no other locations, and this persists even if I remove my home dir from the 'Finder Locations' list.
The Finder Locations picker is currently really only used to grant a Sandbox bookmark to those paths. Any child path/file you right-click will then have permission to actually be opened by Service Station.
I was under the impression that external volumes would not work with the Finder Extension API that Service Station uses, but looking again there may be a way. I'll add that in one of the next updates. Thanks for trying it out!
It's a modern macOS Finder Extension that lets you customize the Finder's right-click menu. On the Mac App Store.
Add your favorite applications for any file type. Or run scripts directly from Finder.
'Open Terminal from Finder' being one of its best features. Just right-click the background of any Finder window.
Excited to see how people use Service Station to customize their Mac! Let me know if any questions.