I would not mind the option of a dedicated trimming map, but I believe this should not be required and I should be able to define trim zones like snow throw zones along existing area maps, NGZ’s, pathways, sidewalks (if they existed for the mower), etc.
There should also be the addition of No Trim Zones. The idea here would be to keep the trimmer away from the area and to ensure it remains off in this zone. Example for this is I have garden beds with shrubs the spill over into the lawn area. This hasn’t been an issue for the mower, but the trimmer would annihilate these shrubs. I would want to drop a no trim zone where these shrubs are to make sure that the trimmer isn’t overhanging and hitting these shrubs. Maybe in this zone Yarbo mows closely to the boundary but from the left side and not the right but will trim at the edge of the zone.