Mower pattern adjustability and variation

Ability to adjust pattern,pattern settings and direction manually as well as a rotating or alternating patterns and settings on subsequent mows

You can always adjust them manually by editing the area settings. Rotating patterns is interesting. By default it rotates the angle by 10 degrees for parallel cut. You could set this to whatever rotation angle you want and maybe accomplish the goal of varying the cutting angle? Patterns are only completed after subsequent mowing and not during a single cut.