I found this question and decieded to try it out: how do i configure the plank in elementary os?
I held the ctrl button, right-clicked the Plank, and selected Preferences. I then clicked Docklets.
I double-clicked Applications and Desktop and they were put on the Plank. But now I can't remove them. Double-clicking them again won't remove them. There is no "Keep in Dock" box to uncheck. Anybody know how I can do this?