I have no idea how to do a screenshot on an iPad... Or how to upload it.

When I click on a dropdown menu and then one of the options I briefly get a row of links that includes an upload link. This row then disappears when the page changes and I can't find it again without clicking another dropdown menu and selecting somewhere else to go. It disappears well before I could click that upload button that appears and since the page is in transition it probably doesn't work anyway.