I can't seem to figure out how to simply move my pyro simulation to a different spot in the viewport. Any ideas how to do this?

Well, if I were you, Id enabled Dynamic Resizing, and have the centroid of the pyro sim follow the bounds of your source, then it should dynamically track according to the field you specify.

You mean after it's simmed? You bring it back into an object with a DOPs import field SOP, and then at the /obj level, hit esc and ENTER in the viewport and you should be able to translate it around.