I've moved your question into its own topic.
Neither Midi nor DMX have a column advance option. A Next Column button is fundamentally different from the button you are talking about. We're aware of how much you would all like such a feature and it's confirmed to come in a future version.
Midi and DMX just have the option to assign column triggers to a single DMX channel or Midi cc, where each value on that channel or cc will then trigger columns. So you can assign DMX channel 1 to this control, and then send value 1 to trigger column 1, value 2 to trigger column 2 etc. This is done so that you don't have to map 255 DMX channels to trigger clips, but rather use 1 channel to trigger all 255 of them.
OSC already can do this. Just program your sending software to send trackX/connect/, where X is the value of the column you want to trigger. A keyboard can't have this option, because it only has two states, on and off. You can't use it to trigger different columns based on a single control.
Does that explain things a bit?