There is a lot of work required internally in the software in order to have frequency band buttons. Band limits need to be set and the appropriate LO, IF and decimation needs to be programmed. It is definitely not something that a user could set externally and I don’t suspect this will be available in the future.
BTW – The latest release 1.32 of the software does not use the Windows registry. Everything is saved in a .ini file which can be saved by the user as a backup. The .ini file can be opened as a text file if you want to take a look at it. The program Notepad++ is nice to use because it formats the file nicely for easy review.