Additionally, you can edit, move, or remove items in a panel by right-clicking on the item in question and selecting the appropriate option. There are other options to create, remove, or modify entire panels. Please be careful when doing this so you do not accidentally delete important customizations or clutter up your desktop.
NOTE: The more customizations you add to your desktop, and the more files, directories, and launchers you add to your desktop, the slower GNOME will become, especially for logging in. It will also count against your disk quota. While you are free to customize your desktop, please exercise moderation.