Set defaults for checkboxes in tests page

Currently I am wanting to establish default settings for the checkboxes in the /tests page. I want the container to be always docked (unless unchecked) because I have some code that uses getBoundingClientRect() and the moving container throws off my tests. Is there any way to do this ? I know I can specify options in the url but I would prefer defaults so that the inheritors of my project don’t have to be aware of this quirk. Any help in this would be greatly appreciated.