Has anyone used Arturia Spark with Ardour? I'm interested to know if I can use the multiple outputs of Spark. If I route sound in Spark's own mixer to Spark's master channel then all is well and sound is routed successfully to Ardour's mixer. If I use Spark's other outputs (to separate the different drum sounds to different mixer channels) then I hear nothing in Ardour. If I was using Logic I could add auxilliary mixer channels to deal with the different outputs from Spark. Is there a way of doing something similar in Ardour?