More organized ATC??

I have some of the PAI AI flight plans ( mainly the ones that Fly in the US.) and a few of my own flight plans and they all work awsome except when it comes time to set these birds down.
Well main at the larger international airports, i get 2, 3 sometimes on up to 5 planes all right in a row. All landing on the same runway, at almost the same time,
Im just wonding if thier a program or a way to make the planes land and take off on all the runways ( that are going the same direction) and maybe get the atc to have some planes have a longer or shorter apporach so where not landing on top of each other.
Well main at the larger international airports, i get 2, 3 sometimes on up to 5 planes all right in a row. All landing on the same runway, at almost the same time,
Im just wonding if thier a program or a way to make the planes land and take off on all the runways ( that are going the same direction) and maybe get the atc to have some planes have a longer or shorter apporach so where not landing on top of each other.