Score Part PDF Export Filename

Hi,
There appears to be no way to customize the format of the exported filename.
I am wanting to be able to import "exported score parts" into a score reader app and it would be much easier/less frustrating if the Part (instrument name) was first in the filename rather than last.

Feature request would be to allow custom formatting of the export filename allowing ordering of segments and a custom delimiter (if desired) rather than the default "_".

Thanks