Yes you can.
Just need a USB Hub. I have 3 connected to mine.. 1 in the KB and 2 on a hub in the back of the Mac.
Auto tune on an I-Lok would be nice. As far as I know this is not offered. Only Dealers have this option. (So it has been developed) I have asked for this without a reply. Educator TC
Autotune 4 was supposed to add iLok support. I don't have it so I don't know for sure, but that is what they told me.