tower, ground, approach, clearance.....circles on map ,...how do you make them appear please ?

Thank you

Donald

I suppose you're looking for online network (VATSIM, IVAO, etc.) center boundaries, right?

See menu "View" -> "Airpaces" and check if they are enabled. You can also do this in the toolbar.

Select "Online" in "Scenery Library" -> "Airspace sources".

This explains how to get real airspace boundaries at least for some online airspaces: https://www.littlenavmap.org/manuals/littlenavmap/release/latest/en/AIRSPACELOAD.html

Alex