How do I create a 3-way switch from a single CC value?

OK, so I've got a switch on a soft-synth that controls the filter modulation source - either Envelope 2, LFO 1 or LFO 2 (the synth is the Arturia Oberheim SEM V). However I try to set up a switch, though, I can't get it to toggle between the 3 parameters - the switch just goes to either the left-most or right-most parameter. On the synth, the 3-way switch is controlled by a single MIDI CC so i need to find a way to switch between all 3 using a single CC. I've tried fooling around with row and column settings, to no avail. What am I missing? Is this possible?

Thanks,

Ishaan

The simplest way would be to "represent" your synth's switch in your Lemur project with a fader and set it so that grid = 3

You can also make it work with radio switches but that would require some scripting for custom ctlout messages and also scripting for bi-directional control