Putting Data in a conditional value list without using the other method of of pop-up box
I have two tables , 1 table has car info in it.The other table has car-brands and models in it.They are related with each other thru a relationship with the brand field. I can choose the car-brand of a pop-up box where you can choose a car-brand of the car-brand related table. In a second field you then can choose the models of that brand thru a conditional value list so only the models of that brand are selectable. This works fine , but now I want to have something to put a new car-brand in the related table if it does not appear in the pop-up box and the same for the car-model.Can you do this thru the pop-up box(and I don't mean other)
Is this possible? With a script or relationship ... ?