Help resizing program to use monitor?

Not sure if i need a new thread but i have http://pastebin.com/GTssSbsi that gives me the ability to view quantities of items etc just wonering if anyone can help me resize it to a 4x4 monitor?

Split to new topic.

You need to be continuously checking if the terminal resizes using os.PullEvent(). Example:

while true do
  os.pullEvent("term_resize")
  local w, h = term.getSize()
  print('Term Size: '..w..', '..h)
  --you should redraw your user interface here to ensure it fills the entire screen and is not clipped
end

If it resizes, you have to adjust you GUI to fit the new screen.