Hi there, @scott_maddeaux ...

If you are a Canvas administrator for your school, you should be able to do this.  Here's how:

1. Click on "Admin" in the left-hand global navigation menu.
2. Click on the name of your school account in the slide-out menu that appears.
3. Click on "Settings" at the bottom left corner of your screen.
4. Click on the "Apps" tab.
5. Click on the "View App Configurations" button on the right side of the screen.
6. Scroll down to the "Lucid Integration" row.
7. Click on the gear/cog wheel icon for that row on the right side of the screen.
8. Select "Placements".
9. You'll see a checkmark next to "Course Navigation".  Click the checkmark to turn it into a "X".  This will inactivate "Lucid" from all courses in your Canvas account.  You could also do this for the "Editor Button" and the "Submission Type Selection" if you wanted.

This is all covered in the following Guide: How do I manage external app placements for a course?

I hope this will help a bit.  Good luck!