I’m guessing neither will be able to be hidden. Make sure DEMO mode if OFF, that might be able to hide the galaxy one (probably not though), but definitely important to turn off the Demo mode, it is on by default, not sure what page of the manual its on. The taskbar probably cannot be hidden but the manual says you can change them around or something. Read page 16, 17, 18, and especially 19 in the manual. Perhaps one of the options is to hide the short-cut icons, but I get the feeling not.
Probably not too many people with experience on this. At any rate, good luck with it.