Edit car painting directly in the game

Can I paint the car directly in the game, import the material directly into the game, edit and save it directly, and use it directly when I want to use it, so that I don't have to edit UV in PS, and write jbem after editing
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Jbem writing is very annoying. It will directly persuade you to retreat as soon as it comes up. If you don't pay attention to it a little, the map of the vehicle in the game will become a shit like material

 

You can't do that.

 

Yeah, that's just unnecessary...

This should hopefully help a bit with the jbeam and materials part. https://documentation.beamng.com/modding/materials/vehicle/skinsystem/skintutorial/

 

mean, it's easy for me to draw maps on PS, but it's difficult for me to write data