Sorry about that. This is the first time that I have used the sandbox, and it was linked to the testing version instead of the current version, so part of it wa

Sorry about that. This is the first time that I have used the sandbox, and it was linked to the testing version instead of the current version, so part of it was broken, you don't normally have to click the markup button to have anything show up. I'll quit making edits to this while people are playing with it, because as is (now) most everything should work.