it can be integrated with ease for the commone events and just go from the system
the system is the entire game pretty much.
look at the doors it will shut off the night view when you enter and replace it when you exit the building. to get rid of the clock just delete the picture screen effects common events. i just installed windows 7 the other day so I ave to reinstall my rpg maker good thing i kept a backup of my system
to make the screen stuff apear and close just change the common events for the display images to call eevnt or w/e it was
then make a item and on the item have it call the event. then go into the picture event area at thebottomeo fht e scripts put a wait timer for however longh you want and then have it end the event