Install a plugin from https://github.com/marinaglancy/moodle-local_modalformexamples (if you installed it earlier - update it to the latest version) Go to Site administration>Development>Modal form examples Open browser console, make sure no errors related to modal forms appear in the console during the test Navigate to test 2: try opening form clicking both links (with and without data), make sure values populate for the name and two options Navigate to test 4: try opening form with and without arguments, make sure arguments populate for the name and two options