Hi spyderdyne, Happy New Year!! 
First, thanks for your effort for making XML file.
Probably, if there was no XML of yours, I would not buy APC20 and would not edit Duplex files for it.
And of course I referred your XML, but unfortunately it didn’t work so well.
So I remade the XML file for APC almost completely selfishly. I’m sorry for that…
Then currently, I think that the XML (button & knob layout) for APC40 is almost completed.
But about the application mapping, we want APC40 owner’s opinions.
I temporary made the application mapping like this image:
1523 
- 1: Matrix
- 2: Navigator
- 3: Blockloop button
- 4: Device Selector (Vol/Pan device ~ 15th device)
- 5: Mixer Pre/Post button
- 6: Solo
- 7: Mute
- 8: Volume Faders
- 9: Pan knobs
- 10: Page change for Matrix & Mixer(Left/Right/Up/Down)
- 11: Device Parameters
- 12: Page change for Device Parameters
- 13: Go to Previous/Next Pattern
- 14: Transport (Play/Stop/Edit)
Since I only have APC20 and danoise doesn’t have APC series, we cannot test this layout actually.
So we want APC40 owner’s opinions. Good or Bad or anything else.
This is the APC test folder.
1525 APC.zip
To test this:
- Install Duplex v0.96
- Open;
C:\Users\YourName\AppData\Roaming\Renoise\V2.6.1\Scripts\Tools\com.renoise.Duplex.xrnx\Duplex\Controllers - Remove the default “APC20” folder
- Place the “APC” test folder
- Reload all Tools
Please give us some feedbacks. Thanks in advance.