How do you show a full screen?? Just installed my unit, and with all the p/w and manuals there doesn't seem to be section which details screen selections / options (like on my vx2's, which are super easy to find) - sorry if it is obvious - maybe my head is just still spinning from try to figure out the wiring of the IF-NMEA2k converter! (and the extra black wire which is not shown in manual!?)