Hi there. Just installed my new PoE switches and moving to final stage of network upgrade project which is installing new ZD1200 and five R720 APs. I plan to install the ZD1200 first and go through the quick setup guide. Following this would people generally replace their old APs one by one and then check that the ZD1200 recognizes the new R720s before moving to next AP install, or is it that simple that you just install the whole five APs and the ZD should simply find everything with little issue?