Nils, If you want your new indoor renderer to be beased on the current default renderer (and only want to record the changes vs. that), you may want to start from the "Depends renderer template" I had created way back, it should be in the same folder.
- Note that you do not have to re-compile anything, just put your xml under osmand/render on your sd card, and re-start the app
- Make sutre that you stick to the file name convention xxx.render.xml. If you make changes, it is advisable to not re-use the same file name (caching problem), instead I suggest you add a version number like xxx_v1.render.xml, etc.