Thread: How to use GMapTool and cgpsmapper to split a Garmin "IMG"

Originally Posted by bovirus

Is it possible with GmapTool, open an .img file and change the name that is showed in Garmin device as map name for this .img?

Yes, you can. To set the .img internal displayed name, open the file, go to the Write tab, select Mapset, enter the name you want in the right hand field, then at the bottom click Write selected.
To check the mapset name, go to File tab, click Info & scroll the details that appear back to the top.