Drawing Layers setting

I woudl like to put in separate layers holes by size (hole are created by hole wizard). This way when i save dxf for cnc programs i can turn them by size. This will help me to pick holes in drawing and use them in program. Right now i have 135 holes in 4 types and i take too much time to find same size holes. Can anybody help me with this??

SolidworksDrawings And Detailing