If control assign does not illuminate - there are only two possibilities:

1) You have used all 16 possible destinations and there are none left. In which case, [CONTROL ASSIGN] will not illuminate for any parameters - even ones you know should be able to be assigned to knobs.

2) The parameter is not in the destination list and therefore cannot be assigned to a controller under any conditions.

Pages 175-177 of the MODX data list show all destinations and unit multiply nor octave range are listed here. There are many parameters not available as destinations.

There is a way to control the “Unit Multiply” (that actually works better than assigning it to a Knob). “Unit Multiply” is a documentable setting in MODX SCENE. Because changing how an Arp references the current tempo, this is a parameter you would like to execute on a cue (at a specific time within the music). By documenting the change in a “switched” function you can pin point the moment the timing changes. If, for example, as often happened on the Knob on the MOXF, you were attempting to go from a double time (50%) to a half time (200%) you might windup invoking one of the other intermediate timing units throwing off the groove entirely.

By using a Scene ‘snapshot’ you can precise move from 50% to 200% and not risk losing sync of the Arps. If you’ve used the Knob in real-time on the MOXF I’m sure you know what I mean.

From the HOME screen:
Touch “Scene”
Here you have access to the eight Scene memories.
You can select them across the top (or by the front panel buttons)
There are Memory On/Off Switches for the various parameter areas memorized in a Scene.
“Unit Multiply” is among the parameters in the “Arp/MS” Play Effects... you can take a ‘snapshot’ of the “Unit” setting... it will be applied instantly when the Scene is recalled.
You activate a MEMORY area (“ON”) and any settings you make here are instantly stored in the current Scene.

Scenes in use...
Use the red front panel SCENE buttons 1-4, 5-8 to recall the memorized settings.

“Octave Range” can be used to Alternate the octave that the Arp Phrase is playing. A setting of +1, for example, would play the Arp Phrase at its normal/original pitch, and every other time it would play up one octave. A “+2” setting would play normal, then offset an octave, then Offset two octaves before repeating. Typically, a “set and forget” setting.

Thanks Jason and Bad MIster. I had been using scenes to assign unit multiply. I was just curious about why unit multiply and octave range had dedicated knobs on the MOXF but not on the MODX and Montage and what had changed between those models.

After-market surveys determine what is most useful to the most users. Tell me, how did you use Octave Range on your MOXF?
When you were using Unit Multiply on the Knob, didn't you find it difficult to use in practice?

After-market surveys determine what is most useful to the most users. Tell me, how did you use Octave Range on your MOXF?
When you were using Unit Multiply on the Knob, didn't you find it difficult to use in practice?

Actually, I had a MOXF a couple of years ago, but returned it a short time later within the return window because I felt it was too complicated for me. During the time I had the MOXF, I never used the unit multiply or octave range knobs and didn't know what they were for. I didn't keep it long enough to find out.

I do find the MODX easier to use with just the one Performance mode, and I really like the touchscreen interface.

After I got the MODX, I learned about Unit Multiply and Octave Range for arps. Then I watched some YouTube videos about different Yamaha synths and noticed those knobs on the MOXF, so I got curious. 🙂 I can understand now why you wouldn't want unit multiply on a knob.

The only thing I might want from the MOXF would be the Real-Time Loop Remix (which I didn't get to use, either). There isn't a whole lot of info on the internet about it. It would be kind of cool to be able to remix the arps to get more variations!

Options are more limited but you could set ARPs to transition in real time and use the Performance Recorder to save the ARP output notes while switching between two different ARPs then convert the result to a user ARP. So long as the result didn't violate ARP note count limits. Within ARP constraints, anything you can play in "one take" can be recorded and converted to an ARP. The MOXF facility to edit notes is what is not possible.

Real Time Loop Remix was a feature introduced back in 2001 on the RM1X groove box— then added to the Motif series workstations... if the magic of this feature is of interest I can highly recommend looking into the Cubase plug-in “Groove Agent” ... you’ll find it a compelling companion for the MODX.

Its ability to construct drum tracks that don’t just repeat over and over, is first rate!

Real Time Loop Remix was a feature introduced back in 2001 on the RM1X groove box— then added to the Motif series workstations... if the magic of this feature is of interest I can highly recommend looking into the Cubase plug-in “Groove Agent” ... you’ll find it a compelling companion for the MODX.

Its ability to construct drum tracks that don’t just repeat over and over, is first rate!

I'll check that out - thanks!