I have had situations where I have had to disable automaic relations where they become very cumbersom when doing complex sketches.  I have gotten to where I usualy run automatic relations with Tangent, paralell and perpendicular unchecked as this is the optimum for most of what I sketch.  I have been using SW regularly for only about three years after comming over from the "dark side" (20 years on AutoCAD).  I had many macros, including one that let me change "osnap" (their version of automatic relations) modes.  Is there a fast way of doing this short of Options/SystemOptions/Sketch/Relation/Snaps?   Example; in one situation I would want Tangent enabled and Quadrant disabled, where in other situations it would be opposite.