On the 12.3 screen we get the IOD cards on the right hand of the screen. Is there any way to add/delete/change what cards show? I've read the comprehensive half paragraph in the owners manual and couldn't find anything about it.

 

You can use Forscan to toggle various cards off and on. Trip. Off Road. Bed Camera. Mileage. Generator. etc. See the Forscan thread for details.