I am using EndNote 8 with two papers using two different citation styles. I set up two different libraries and set up the output style for each, or so I thought. However, EndNote can only support one citation style. It is very frustrating as this changes the papers to one or the other and back and forth. With each paper, I have to remember to go back in to EndNote and change the style. Often I am working on both papers simultaneously so this can get very confusing.
Please consider adding the funcitonality to the software to configure output styles per library.