To enter a map editor, you must edit config.cfg file located in your home directory; for example
..\$MyDocuments\SCANIA Truck Driving Simulator\config.cfg
You should create a backup copy of your config file before next step. Use your favourite text editor to edit the config.cfg file. Change the following line in your config file to enable console and developer mode
uset g_developer "1"and then save the config.cfg file. Next begin SCANIA Truck Driving Simulator game and press the ~ (tilde) key to display the console box. Type one from following:
uset g_console "1"
and map editor will be displayed ;-).
You can edit other maps from this game as well. To the full list of maps name you must extract base.scs file and look at /MAP subdirectory in the root game folder.
You must know that enabling g_console causes message below:
An unsigned mod is present or game console is enabled. Online functionality will be not available and progress will be not saved in the Freeform Driving levels.