You can hide a workspace panel to make more room for the artboard.
To hide a panel from the workspace
Do one of the following :
To show a panel to the workspace
On the View menu, click the name of the panel that you want to add to the workspace. Panels that are already displayed in the workspace appear on the View menu with a check mark next to them.
To show or hide all workspace panels
You can hide all visible panels at the same time. Press F4 keyboard shortcut to show or hide all workspace panels at the same time.