HFM Font Families - Report Headers missing bold type

Hi, looking at FRConfig, I see files controlling font types for TOC, but what about report fonts? All of our HFM Reports use "Microsoft Sans Serif" it seems as the default font type for Headers. I don't think this is intentional but a default chosen by Financial Reporting Studio?? At any rate, this font type lacks a bold font family entry in Windows. Therefore, it's no surprise that all of our reports generate with the headers without bold property.

My questions are:

1. What is driving this default font for report headers?

2. Is the default header font customizable?

3. Can we batch update all existing reports to use a different font type for the headers that WILL work with bold, i.e. changing them to "MS Reference Sans Serif Bold" for example.