[kicad-users] Export to Spectra DSN functionality

[mmabshaffer]

Today I am trying to understand the Spectra DSN Export function. 
1. Is there a place I should look to read about this? I didn't find much in the 
Help and FAQ.
2. Why is it in PCBNew instead of EESchema?
3. Are the KiCad footprints exported or must the target router have matching 
footprints.
Thanks,
Bob