The Task Pane can be docked (attached to the side of the Worksheet window) or undocked (unattached and floating in the middle of the Worksheet window).
If you drag the undocked Task Pane by its title bar, docking arrows will appear on the screen. These arrows indicate the locations where the Task Pane may be docked. Hover the cursor over one of the docking arrows to automatically dock the Task Pane along the edge of the screen.
Auto-scroll bars
If the contents of a Task Pane view is too extensive to be viewed at one time, auto-scroll bars appear at the bottom and/or the top of the view. Hover over these auto-scroll bars to automatically scroll the view.