If you look at the screenshot below, you can see one of my oil refineries.
I want to know if it is possible to switch which output say petroleum gas uses. Currently it uses the top right of the refinery to exit. I would rather is be on the left, as my chemical plant that uses the petroleum to make plastic is over that way. I have to make a more complex configuration of my oil field because of the petroleum.
I also know that in the future, advanced oil processing makes it so that a refinery uses water and crude oil. Is it possible to switch the inputs as well?