How to set the Features Filter to detect Mounting Holes on the PCB?

Hello All,

Can anybody give me a hint how to detect Mounting Holes using Features Filter?

Mounting holes are exported from ExpeditionPCB into ODB++ without Pad Usage attributes assigned (as opposed to vias and component pins, which have Pad Usage = via and Pad Usage = toeprint assigned).

So in the Features Filter I click Attr button, then I select Pad Usage attribute in the list and add it to my filter. But how should I customize the Features Filter to detect the pads which haven't Pad Usage attribute assigned?

Oleg