Not really more complex, just different and does many more things so there is bound to be a learning curve. Hang in there, it will all get easy with familiarity.
To clear the Genie and the internal memory (.sbp files) go to the MISC section and go to DELETE. Hit that and select to choice DELETE ALL. This clears everything ready for you next session. Just make sure you have saved it all to your card first: Go to MISC / SAVE TO CARD / SAVE ALL.
Much quicker and easier than deleting or saving each type of file separately! :-)
The older I get, the better I was.