Add-On cars won't spawn using trainer and how to rename car's ModelName?

[bLaCk0uT]

Hello,

 

if I happen to have 2 mods and both of them use the same ModelName (DLC folder name etc.), what files and rows do I need to change (rename) to be able to use both of them? Do I need to merge them into one?

 

Thanks for any help in advance!

Edited July 19, 2017 by bLaCk0uT