@admin-pdk you can achieve this...:
- For new courses, using course templates.
- For existing courses, using the API
If you create new courses from a template course (course settings > enable as a course template), you can hide the LTI by changing the visibility in course navigation settings. New courses created will have the LTI hidden by default.
For existing courses, I can only think of one method - using the Canvas API. Details here: https://canvas.instructure.com/doc/api/external_tools.html. If you're not familiar with the API, your customer success manager may be able to help with this.