How to change cameras in After effects
One way to do this is to export by clip - i.e., set your camera to angle 1 and export your first X frames (where 'X' is how many frames you want that shot to last for). Then, adjust your camera to angle 2 and export the next set of frames (however long you want that shot, etc.). These clips can then be combined in Premiere Pro (or After Effects) and you can easily add sound effects, etc. They are easy to timeline edit this way because they'll be already rendered and thus, you can work with the project in a much quicker way.