Create a mechanic

Click the button , then in the “Details” section, enter the label (mandatory) and a description (optional).
In the "List" tab, click on the button , then enter the label (required) and a description (optional).

For example :

Click on to save the creation.

Modify a promotion mechanic

Click on the mechanic to modify, then in the "Details" section, modify the label or description.
It is also possible to modify the list of values by clicking on or delete a value by clicking on

Delete a promotion mechanic

Click on the mechanic to delete, then on the button to then confirm the deletion.