Page 221 of the Data List doc is the 06 00 03 00 Performance Common Controller data table. That table contains entries for the Control Number assignments for the various controllers - which you can set on the 'Edit Common -> Control -> Control Number' screen.

Following are the values for the 8 assignable knobs - which you can set on the 'Motion Control -> Super Knob' screen.

Then the following table entries appear:

30 - Knob Mode - values [Selected Part, Multi, Groove, Assign] - appears to be the same as the QUICK EDIT button labels on the front panel
32 - Common Knob Function Select - values 0-11 - what does this represent?
34
36 Groove Knob Function Select
38 AWM2 Knob Function Select - values 0-15
3A Drum Knob Function Select - values 0-12
3C FM-X Knob Function Select - values 0-19
3E AN-X Knob Function Select - values 0-26
. . .
several Ribbon settings that you can set on the 'Edit -> Common -> Control -> Ribbon Settings' screen

I'm trying to associate those Knob Function Select settings with knobs/screens but haven't found them yet.

Has anyone seen any Knobs labeled AWM2, Drum FM-X, AN-X or Groove. I'm thinking those knob labels will only show up when you are on an appropriate screen. Also assuming that the listed value ranges means that for AWM2 (0-15) turning the knob will display a different sub-screen for each
value from 0-15 and that the text above the button will likely change to reflect what the that setting represents.

But I can't find any reference to Knob Function Select values that describes what the values mean.

------SOLVED ------

Refer to one of the 'Screens and parameters -> Viewing the Screens -> Information on the Sub display' sections on Page 106 of the Operations Manual or the online manual - https://manual.yamaha.com/mi/synth/montage_m/en/om02screenparameters0020.html

There is a graphic of the sub display with sections labeled 1, 2, 3 and 4 and a table that explains each section.

The tab section (#2) has one or more tabs. Selecting a tab changes the page section (#3) and the specific page that is selected
determines what is displayed in the Parameter area section (#4) which are the parameters you can change using the 8 knobs
located below the sub display.

The data shown above (e.g. AWM2 Knob Function Select - values 0-15) is for an AWM2 part and means that there are 16 different sets of parameters that
can be displayed in section #4. Each set is selected by a unique combination of Tab# and Page#.

Different part types have different numbers of tabs and different tabs can have different numbers of pages.

The data above show that a Drum part has 13 sets of parameters, an FM-X part has 20 sets of parameters and an AN-X part
has 27 sets of parameters.

If you select each tab, one at a time, and count the total number of pages for that tab and then add up the totals you will get
the numbers I just gave above: AWM2 - 16, Drum - 13, FM-X - 20, AN-X - 27.

You can get the value that represents the current sub display screen for a part but you can NOT send a SysEx command to change
the tab or page. This conforms with prior functionality in that you can't use SysEx to make changes to front panel settings like tabs
or buttons.

This is the mapping of the AWM2 value set (0-15) obtained by selecting each button/tab in order from left to right (1-8).
And for each button selecting each 'page' in order from left to right. Some tabs don't have a 'page' selection because they
only have one screen of parameters

SysEx command requesting the parameter: F0 43 30 7F 1C 0D 06 00 03 38 F7

AWM2
tab 1 -> 00, 01 = 2 pages of parameters
tab 2 -> 02 = 1 page of parameters
tab 3 -> 03
tab 4 -> 04, 05
tab 5 -> 06, 07
tab 6 -> 08, 09, 0A = 3 pages of parameters
tab 7 -> 0B, 0C
tab 8 -> 0D, 0E, 0F

Not the most widely useful puzzle to solve I'm sure but another piece of the puzzle falls into place.