D888 mixer only

[alansykes]

Here's one for Korg experts like Bill and others....
Delighted with this newly-acquired and now-obsolete multi-track recording machine and am hoping to use it additionally as a mixer in my studio when doing voiceovers via my ISDN codec to distant studios. Crucially the incoming audio from the ISDN codec doesn't go via the mixer here, back to the distant studio, causing them irritating "bounce-back". The issue is easily solved by using the AUX output facility on a standard mixer:- my studio mike is sent to the AUX output which is fed to the ISDN Codec's input, and the incoming audio channel from the distant producer(s!) is not.
Is this routing possible with the D888 in "Rehearsal" ? Hope so - ALAN