Newbie: Help disagrees with app
"If you have previous experience with a language and feel that lessons are too easy, there are several ways to advance more quickly. To test out of individual skills (e.g. Basics 1), press the button in the top right corner of any skill page that says “Test out of this skill.” If you can pass this test, you will instantly learn the skill.
If you would rather test out of many skills at once, you can click on the padlocks found throughout your skill tree on the Home page. Passing this test will unlock all skills in the tree up to that point."
I see no button “Test out of this skill.”
After going through "test out of 8 skills," my only option is "go home," which wipes out any test results.
Thanks for pointing me in right direction.