Simple idea- for the cockpit parts in the builder, it should have configurable options to select what sort of instruments you want- maybe have a selection of 3 or 4 configurations from different eras, for example- stuff like single-seater vintage planes, WWII style bomber, commercial passenger, military fighter jet, etc... so when you go into cockpit view on your plane, you can see the instruments, radar, nav computer, etc. from what you chose. Or, have the ability to custom make the layout of the cockpit from whatever instruments you want. Also have moving control sticks, throttle, pedals, etc... to give a more realistic feel. :) I have seen some people make some amazing custom cockpit views but that is so much work and adds a lot of complexity to a model.