I am able to answer my own question.
The wave files I have I converted from 44.1kHz 16bit to 48kHz 24 bit PCM WAV files as specified.
Then I assigned the SQ-Drive to 48kHz, assigned input channels 1, 2, 3 on USB to resp. Seq Left, Seq, Right and Clicktrack.
My patches on the console I then assigned to the same USB channels
Click track only goes to the AUX channels (monitors), I turned off the output to Master
And one stereo seq track on the board did the trick for me.
It took a bit figuring out which WAV format the files needed, even though I knew what it needed to be (according to the manual)
https://medias.audiofanzine.com/files/sq-referenceguide-v1-1-0-480325.pdf
Perfect!!!