Many thanks for this :D
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For it to work you must currently be in a vehicle. If your not in a vehicle then 9/10 times it won't work. I will try to make it where if you select a vehicle then you will be in that vehicle even if you weren't in a vehicle to begin with.
Thanks, I have a couple of new things so far. I'm trying to add as much as I can in each update.

Good job. Thanks man!
i think i may have figured it out. i didn't pay attention if i was in a vehicle or not when is saved the file that use to edit it on ur tool. but i know i wasn't in the Sandking truck, and i remember on the editor the last vehicle i had selected was Sandking, and although the button wasn't lit up and after i finished editing and loaded up in the game i started out in the Sandking truck.
and under garage under the car u have in garage pic it has extract vehicle replace vehicle. how exactly does that work. can u edit the car from the file u extracted if so how do u open the file to edit it.
Great tool!
I don't suppose you could add all the side missions, not main missions editable so you can set them to GOLD medals as well, also there are some main missions that have medal awards but you can't edit them, will this be added in the future ?