Hi Jozef,
sorry for answering late. Pointing to the OsmAnd Base Directory via storageconfig.txt/additional_mapttool_dir should work,
however, in your file-manager screenshot, OsmAnd is not there.
Standard Konfig for 4.4/external should be:
- BRouter Base is INTERNAL
- sorageconfig.txt (in internal segments3-dir) points secondary_segment_dir + additional_maptool_dir
- OsmAnd BAse is EXTERNAL (Android/data/..)
- "brouter.redirect" in osmand/tracks points to a writable directory
see
http://brouter.de/brouter/kitkat_survival_readme.txt