Lots of design philosophies out there.* Sometimes it's good to
hide things under multiple screens.* Sometimes having things
"pop up" or "slide out" is good.* Othertimes it's good to have
everything available in a single screen. Maybe prioritize?* What
functions will be used most often?* What information will be
needed most often? Ask questions like, "What's the least they
need to do this?"* and make that first (if multiple screen) or
highlighted (if single screen) - like surrounded by a box, or
different background color. In fact, if this is console/native
font... make full use of background colors as that will help
speed/memory retention. That's just a few thoughts.*** I know
there's some cognitive things, like "the human brain can process
7 distinct things* plus or minus 3 ,at a time... so many times
menus or displays have a maximum of 7 items in them. Also, I'd
look at competition.* You can learn a lot from what they do
right, what they do wrong, etc.