I am have an issue with self tapping screws why is there onlyone length for #8 screw 1.25" long and when I use smart fastener ithas no property area to select length. When I insert from toolboxand use the drop down menus it still only has one length. How can Iadd more length screws to my toolbox. Also why does it call out thehole for a machine screw in the feature manager can is there a wayto get that to display self tapping without manual changeit.SolidworksToolbox