You create 5 different pools with different priorities, but they'll need to be the 5 highest priorities in your list. I have mine setup as 4,5,6,7,8,9 (lets me add something as 1,2,3 if I wanted to). Miningpoolhub will automatically shut down the ports it's not using when it switches between them. For example, if it's auto-switching on x11, the x13, x15, quark and qubit pools will show as 'down' in the baikal because miningpoolhub has shut them off, letting the baikal auto switch to them.