How to assign midi channels

[m31asy]

Hello eveyone,

I m new to vArranger, and i m missing an important part in the description.
How can i assign midi channels to left and right when using one keyboard, and the Keyboard is using midi channel 4.

Changing the midi channel of the keyboard is no solution because i ve an Cubase setup with all assigned midi channels.
There must be a solution to use midi 4 for the complete keyboard in vArranger with the splitpoint for left and rigth, same as on a real keyboard.

I m thankful for all help and suggestions.

Thank you