When using the L6 link for mains and monitors the main XLR's could be monitor sends 5 and 6 also XLR mon sends could be mon sends 7, 8, 9, 10 giving a total of 10 Aux sends... Or a box that can be plugged into the L6 link with the stagesource speakers that has multiple XLR outputs for additional Aux sends.
NOTE: I know what I've said in the past about Ideascale but I have tried at it once more.
​here is a link to it:http://line6.ideascale.com/a/dtd/Main-+-mon-XLR-outs-can-be-Aux-6-through-10-when-using-L6-link/685221-23508