For those who want to code their own entries, each source follows a specific XML structure: Customize Onlinemapsources.xml - OruxMaps
Found at /oruxmaps/mapfiles/onlinemapsources.xml , this file is often overwritten during app updates. Oruxmaps Online Map Sources.xml
Open OruxMaps, go to Switch Map > Online , and tap the Refresh button (circular arrows) to load the new sources. Structure of a Map Source Entry For those who want to code their own
If you want to add a specific map (like Google Maps or a regional topographic layer), you can either download a pre-made XML or edit the file manually. go to Switch Map > Online