When movement behaviour are active (avoid crossing outline for travel movement), the number of retraction are reduced but the quality of the z surface are poor in some areas.
When movements are on the line of the outer perimeter (the last visible line to the outside), it has a deposit of the material that comes out from the nozzle during avoid crossing outline for travel movement (especially if they are long movements).
For example, if the perimeter is formed by 3 lines, it would be useful to be able to set the movement on the first inner line, saving the quality of the outer surface.