My guess is the 3 arc second option was chosen as a means to conserve space/ include people that are outside of the United States as the higher resolution DEM data for the Shuttle Radar Topography Mission (i.e. STRM1 (
So my request would be- is it possible to include a choice so that when you go into the 3D view in Oruxmaps to have an option to choose between SRTM3 data (