@LightBurn , thank you for those replies.
re. my ask to have a Preview option show ‘true kerf width’- you’re right, confusing description. Let me try again; In LB, Preview window, the centerline toolpath has always been shown but not the shape contour (in MM, ‘Show project shapes’). That’s one of two asks/suggestions please to also add option ‘Show project shapes’ in LB Preview window.
Second ask please- have an option in both LB and MM to show or augment the centerline toolpath with a thick line that represents the true kerf width. This is done in the MM left side Preview split window given the 3D nature of the cutting process, however the shape contour lines are not shown. A feature like this in LB (2D of course and relative to shape contour lines) would be very handy when kerf width matters, such as in plasma cutting, kerfs are typically 1mm+. I simulate this effect by using Offset Shapes tool so I can examine and correct necessary gaps between shapes tangent to each other or between shape edges if its an inside shape cut. If I don’t catch it in LB, then I also have the opportunity to see and catch a mistake in my CAM sw, it is a very useful visual feature.