Thank you. I just want to delete the Europe map (more than 2 GB) I purchased together with the unit because I´m not living in Europe. The space I like to use to add maps of other countries in Asia I sometimes travel to. Last year I bought Garmin SE-Asia and 2 other maps. As far as I understang you I cannot add all these legal purchased maps at the same time, I can just copy them to a folder named Garmin at the SD card and the unit can just read the one map named gamapsupp.img. Via SD card it`s working, even without more spoonfeeding through this forum
Anyway: for Indonesia there is no need to use Garmin CN. Use navigasi.net which is free, far more detailed and which covers the whole country and not only some selected areas what CN is doing.