Changing options in 'Multiple Part Files'

Now i have a library that i have downloaded and its units are in inches, i would like them to be in mm. Instead of changing the options, units, to Metric(mmgs) every time i open up one of the part files, is there a way to change the options of the whole directory(library) of part files.

Yes i could not download a Metric version of the library.

SolidworksGeneral