flip start and end angles along with Direction with a single toggle button

This would mainly be for a series of radii on a part, where the intent is to create auto circles in a sequence and maintain a fluid motion of the cmm (no clearplanes or avoidance moves between).  Currently there is about a 2deg indent from start and end angles, which is helpful, however, when selecting cad surfaces for radii where there is a back and forth between corner and fillet radii, there needs to be a changing the start/end angles from the default (based on right hand rule i assume) and a change of the direction so that the cmm can get from one radius to the next fluidly.  What would be handy is a single toggle button (similar to the current toggle for "flip vector" for surface and angle vectors in the circle auto feature 'feature properties' area), which would simply flip the start and end angle values as well as the direction.