Hello,
Some of these things are already possible, just not so intuitive.
For example, to clone group, open Edit group window / Settings / Clone group.
Also, to move multiple dials - click the main menu / Select dials, then select dials you want to move, then right click and choose target group or use cut/copy/paste.
There is only like 10 paid features, the huge majority is free:
https://github.com/fastaddons/GroupSpeedDial/wiki/PRO-version-features

It would be great if you could create issue for the missing features on my Github:
https://github.com/fastaddons/GroupSpeedDial/issues
And I'll try to implement them.
Software development is hard, I'm doing my best to make it easy for the users, but for me as author it's all easy and intuitive. I plan to record some tutorial videos soon that will cover some of these topics (like organization). Also, there is a new intro video:
https://www.youtube.com/watch?v=mgAJTjrcIRI

In any case, thank you for the feedback, I'll see what I can do to make things better :)

Best Regards,
Juraj Mäsiar