CV control of eurorack

[pianimator]

I'm wanting to use the CV outputs of The River to control a eurorack oscillator.  I've successfully got the gate triggering and the output of the oscillator 'sounding', but I'm not getting the 1v per octave assigned for the River's keys to change the frequency (pitch).  Where can I find that option?

[pianimator]

I've got one oscillator being controlled by the gate and 1v per octave setting.  How do I set up polyphonic cv control for more than one oscillator?