Chord Pad Problems

I’m having problems with the Chord Pads feature.

I’m running Cubase Pro 9.0.20 on a Surface 3 touchscreen tablet. I thought that when the Chord Pads were visible on the screen I would be able to touch them and have the chord play. But all that happens is that the controls for that pad become visible. Is this how it’s supposed to work?

Also, I never see the Voicing Indicators (little white vertical bars) that the manual says are supposed to be visible at the bottom of each pad. This makes me wonder if I may somehow have the Chord Pads in an editing mode instead of a play mode. But I have not been able to discover any such setting.