Step by step
Open Services
Go to Services and find the service you want higher or lower on the list.
Use Move up or Move down
Open the row actions menu and choose Move up or Move down to swap with the neighbour.
Or set Sort order
Open the service → Edit → Sort order, enter a number, and Save if you prefer exact ordering.
Confirm the list
Refresh your eye on the table — the service should sit in the new position.