Gravity forms

Hi!
Great plug-in. I have been using it for a long time, so thank you.
I have a doubt though… I have gravity forms and a crm, and I have some forms that include conditional logic, ie; What car model you choose from a dropdown list, shows different versions for said car. How should I map this in the plug-in dashboard? If I map 2 id’s to a single 3rd party field I receive the 2, but I just want the one the client chooses…