About Deactivating and Activating Parking Grid Cells
You can specify where vehicles can or can't park by activating and deactivating parking grid cells.
Deactivate cells to represent unavailable parking spaces and activate cells where vehicles can park. Label deactivated cells as needed. If you deactivate a cell that had a pull-out or walking sequence number specified, the sequence number is removed. Similarly, if you deactivate a cell that was defined as a maintenance area, the cell is no longer a maintenance area.
To deactivate a cell, right-click the cell and select Deactivate. To activate a cell, right-click the cell and select Activate.