Question about Onkyo TX-NR696

Can two separate HDMI inputs on the Onkyo TX-NR696 be assigned to only one input (BD/DVD)? To explain: My BD/DVD PLAYER (UBP-X1100ES) has a second HDMI output ("audio only") in addition to the HDMI output (video + audio). The Onkyo TX-NR696 assigns picture + sound to the PLAYER connected to the HDMI BD/DVD input. The picture is thus passed on to the TV via the HDMI output Main and the sound is passed on to the speakers via the receiver. Unfortunately, with this configuration, a picture is also output when playing a CD, SACD, DVD-Audio or Flac file. This should be avoidable when playing these media if I only want to listen to music (pure audio/direct). Unfortunately, I have not yet been able to define a hierarchy in the menu in order to get the best out of the combination "TV/audio" and separately "audio only" with the assignable HDMI inputs. Has anyone already been able to solve this problem?