[3. Add your own POI or import from plain lon/lat txt or csv file.
Take a look at
POIplaza | Free Points of Interests (POI) for iGO, Garmin, Sygic, TomTom and other popular navigation systems.
You can use: iGO 8 txt, iGo txt, GARMIN csv, destinator asc, mio asc, navigon asc, route 66 csv and tomtom asc files from there.]
Ive tried ASC CSV TXT KML same problem