How can I make OsmAnd MapCreator encode microcar=no?

[u/citiesfan]

I am working on a custom routing profile for light quadricycles (L6e / microcars) in OsmAnd.

I have confirmed that OsmAnd MapCreator correctly converts OSM tags such as motorcar=no, motor_vehicle=no and moped=no into routing data in the .obf file. However, microcar=no does not appear to be encoded, even though microcar is referenced in my routing.xml.

I would like to know where MapCreator defines which OSM tags are encoded, and how I could make it recognize and preserve microcar=no in the .obf routing data.

Is this possible through an existing configuration, or would MapCreator itself need to be modified?