Here you can set/adjust/add/remove the primary coding.
At the top of the screen, next to the text primary coding, you will see a coloured field that is a drop-down list. Here you can choose from the standard codes or create a new code.
If you choose to create your own code, select ‘add custom coding”.
The following screen appears:
Enter the desired value and then click Save
In the group code lists, you can also add and remove codes or import/export the lists using an op.2 file