In a design I have some Mouting Holes defined as Annular Rings that in some points are for a part of them across the board outline (that is a curved line imported as dxf) so when I plot gerber a part of the copper of those mounting holes is outside the board so I need to add a note to the PCB manufacturer to tell him to space those copper 0.3mm from board following the board outline. I would like to send to our PCB manufacturer the actual design of the PCB he must produce designing such figures without adding verbose notes, Which is the fastest graphical method to obtain such figures ?