I just noticed your question about mounting holes from Expedition PCB in Valor NPI.
Both plated and non-plated mounting holes have an assigned Attribute of Mounting Hole and also a Pad Usage of tooling_hole in the ODB++ file exported from Expedition PCB.
Please let me know if you don't have this working as it should do.
Mounting hole is differentiated from other pads from its size ,so use filter option with it size to detect the mounting holes
Thanks and Regards