You change the paths to find models through the "path" statements in your script.
Open up your games main script, (same name as your game file by default). Open it up, go to the "path" statements, and put the path to the folder where you store your models..
ex:
Code:
path "C:\\Program Files\\GStudio6\\Work" //Path to the work folder...
Now you will be given a list of the models in that folder to choose from...