Stuart wishes to move the Comments block so it is above the calendar. As with hiding, he has two options:

The move (up/down arrow) icon is familiar with earlier versions of Moodle. If you had Ajax enabled in your site you might have had a different icon like a handlebar, for moving resources and activities. However, even though we don't have the Ajax handlebar icon for our block, we'll still see the presence of Ajax when Stuart moves his block. In the following screenshot, from left to right: