I have just started to play with RM the other day, so I apologize if I have simply not found the feature yet.
As I fish in the ocean, I will more or less get new/better track data all the time (via NMEA).
So the primary use of RM for me will be to create live maps on the fly. As far as I can find out I need to define the map borders for the project, and then the maps are created within that boundary.
What I would like is a feature where the boundary is a certain area around to initial position (e.g. 1000x1000m), and whenever I get close to the current map boundary it is automatically changed to be around the new current position.
Best regards
Martin