Use the Auto-renumbering feature to assign new, consecutive numbers to the lines. You might want to use this feature when the calculation lines have not been numbered correctly because you have added calculation lines at a later stage.

Example

Let's assume you want to re-number all calculation lines, starting from 10, with the subsequent lines being number 20, 30, etcetera. Choose 'All lines', a starting value of '0' and a step size of '10'.