hi Pascal,
If you just would like to Art-Net for recording in either the 'console' or 'recorder' then all you need to do is set the 'Art-Net in A' and 'Art-Net in B' subnet numbers in the 'settings' page. These numbers should correspond with the subnet numbers used in your Art-Net controller. There is no need to make any settings in the 'Show control' page for this function.
The 'show control' page is used when you want certain actions to be triggered by incoming Art-Net channels.
cheers,
Maarten