1. In 'Units & Rates>Units' click on the 'X' icon to remove a unit. The unit cannot have any reservations or out of orders in future in order to be removed.
2. To restore a unit click 'Inactive' button at th top of the page.
3. Select the unit you want to restore in the list of inactive units by clicking the unit number.
4. Click 'Restore' in top right corner.