Is there a way to format quantities on invoices to include commas?

SUGGESTED

I have been able to edit the BWUser.ini to add commas and dollar signs to all money related numbers on the invoice form but have been unable to find a way to get commas to print in the quantity field.  Does anybody know how to do this, if it is even possible?  It would be great to allow a larger quantity as our business routinely sells xxx,xxx quantities but that field appears limited so we have to just put the first section and then hand add a comma and the last three digits.

Any help would be appreciated!