It is really complicated to set up HELIX to hear a click from the computer on the headphones (but no other output). We shouldn't be forced to waste one of the four DSP paths for something simple like that.
So please Line6, give us better routing possibilities in the global settings of HELIX.
There's already a good suggestion on ideascale:
https://line6.ideascale.com/a/dtd/Add-USB-3-4-to-a-Headphones-Monitor-in-Global-Settings/958806-23508#idea-tab-comments
Everyone interested to see improvements, go ahead an vote up.