I'd like to be able to add an "extra loose" option in the hole wizard table for screw clearances and such. I know I can type in a custom size in the hole wizard dialogue when I'm making a new hole in a part and that's not what I'm looking for. See attached screenshot. When I try and add a new column to this list using the import and export function, I get an error. Looks like it's not set up to expect more than 3 options. 

My reason: the fasteners I work with typically get heat shrink added to the body of the bolt to prevent galvanic corrosion (stainless steel fasteners, aluminum base material, saltwater environment). This adds a non-negligible amount of material to the OD of the bolt and the "loose" option typically doesn't give enough clearance.

Not sure if this should be a feature request or if there's actually a way to do this already that I'm just missing.