This particular button shows Offline Mining. You can compare the actuals against the planned layers to get the overbreak and underbreaks. You can specify various things like Depth to floor workings and for a safety factor to be drawn in the middle of the pillars
Select the area you would like to compare elements in, then you can simply click on draw and the figures will be automatically calculated and overmined and undermined will be drawn as per your specification in colours.
