Hey Alan,
FSBpro has the functionality to add this yourself if you are able to code.
As to why to use either over the other, other than the new what is it you are trying to do with the software? If you expand a little further on what you are looking for then I can advise you further :-)
Both software have their different strengths and weaknesses and compliment each other really well but it all depends on what you want to do.