First, install the Tampermonkey extension if you don't have it. Then click on the links below and Tampermonkey should automatically recognize the user script and ask if you want to install it.
While enabled, this will auto unlock any CourseArc page you load that is locked. https://gist.github.com/murrayinman/5702945f3f41f8bdcbda5f0ed1e59552/raw/UnlockThemAll.user.js
While enabled, this will auto lock any CourseArc page you load that is unlocked. https://gist.github.com/murrayinman/f81bc745737071b3302e3f315470fd09/raw/LockThemAll.user.js
Open the Tampermonkey dashboard by clicking on the icon and choosing the dashboard option. Disable one or both of the scripts as desired.
Be sure to check the Tampermonkey dashboard to enable and disable the scripts as needed - especially for these scripts, never have them both enabled because it will cause a constant loop that will make the CourseArc page load and reload over and over.
You will know you have a script running/affecting the page because the extension button will have a counter badge on it: