When I play my project in Propellerheads Reason, My tracks play as normal.

When I export the track, all microtonic patterns begin running from the start of the track until they're triggered to switch off.

Surely, there's is a simply way to tell microtonic not to play unless it is triggered??

To quickly get around the problem I had to literally put a Midi note at the start of every channel controlling Micronics, then leave 8 bars of silence. Then begin the track.

If Microtonic is set to auto-play (green blinking play button in the interface) it will start when the sequencer starts. If you click the stop button (blue stop button) then it should not auto-start with the sequencer. Also, make sure there is no MIDI note data input on the pattern buttons ( C3 -> ) as that will trigger the patterns to start.

I found it.
What I was looking for was under Midi Config: 'Pattern MIDI' set to 'Retrigger Gated'

This makes the "play button" into an on/off switch. Rather than an "on only" command.

I can put in blocks of held C3 into my Sequencer window where I want the Microtonic to play its patterns, but simply leave the midi channel blank when I want it to be silent.