Universal Fader Wings, Master Playback Wing, and a Congo JR.

Setup:
Undo a couple of screws, slot it in the top, screw them back in to secure and finally plug in the USB cable.

Assigning stuff is exactly the same as assigning anything to your Master Playback Wing.
- There's a flash button and master key for each fader, the same as on the wing you already have.

In your case the 1x20 will turn up as Masters 41-60 - the next 20 after the Master Playback Wing - so page changes for these extra 20 faders will use the {Page 41-60} softkey under "Masters" softkey page.

Setup:
Undo a couple of screws, slot it in the top, screw them back in to secure and finally plug in the USB cable.

Assigning stuff is exactly the same as assigning anything to your Master Playback Wing.
- There's a flash button and master key for each fader, the same as on the wing you already have.

In your case the 1x20 will turn up as Masters 41-60 - the next 20 after the Master Playback Wing - so page changes for these extra 20 faders will use the {Page 41-60} softkey under "Masters" softkey page.

Thanks Richard, by chance, do you know how much the 1x20 fader wing costs? And what about power to the wing? Does it need an external power supply?

From

http://www.etcconnect.com/docs/docs_downloads/datashts/4310L1002_Universal_Fader_Wing___Mod_Spec_Sht_vB.pdf

ELECTRICAL
When rigidly connected to Ion or Congo jr, unit powered by console

When connected with external USB:
- 2 x 20 = 10 watt power consumption maximum
- 2 x 10 = 5 watt power consumption maximum
· 8 to 28Vdc external power supply (included)
- 1 x 20 = 50-200mA at 5V

I usually see it list $900-$1000