Step 1: Define levels
The Add Level button allows you to add a new level. If there are already 1 or more levels present, you will also be asked where the new level to be added should be placed in the hierarchy. A new level is always added with the status Not used.
An added level with status Not used can still be deleted by selecting the level and checking the check box on the left and then clicking Delete.
The Next button navigates to Step 2.