The LFO in the MIDI Out track doesn’t seem to do anything.
Edit- 1.0.15 includes the message the MIDI Out LFO is “not available for external MIDI”.
Edit 2- that message disappeared. Now I have 2 CCs I can modulate- CC1 and CC2. I don’t know what’s going on. It’s buggy for me.
Only the Value and Random LFOs are available on the MIDI tracks. You can switch the LFO out by holding shift and pressing M4.
Why does it allow you to pick LFOs you can’t use? Great question. 
@jtswearingen
Thank you! Thank you! You rock.
This is the information I needed. The non-working LFOs have been confusing me all week. I naturally assumed all the LFOs had purpose and I’m just an idiot. I hope TE addresses this in a future update.
Sorry for all the post edits.
So Random and Value LFOs work on External Instrument (now called MIDI) tracks. The LFOs on Auxiliary tracks don’t work at all except for the one LFO on Aux 3 MIDI Out which can address 2 CCs.
Is that right?