I don't have MidiMix and I am not aware of any AZ Controller user with it. So I can't recommend ready to use preset.
The device is Ableton oriented, so it does not has "natural" mapping for Cakewalk. But you can use it with Cakewalk, throw "ACT MIDI", "Generic" or "AZ Controller" surface plug-ins.
There are many instructions/videos about the first two. They are somehow simpler to understand and initially configure. But I (obviously) recommend "AZ Controller", it allows
getting more from your device ("ACT MIDI" can't work with more then 25 distinguishable controls, MidiMix has 59, "Generic" is a bit limited in assignments).
Set default mapping on MidiMix (just for consistency, that will also help with buttons LEDs when/if you try to control them), then use
https://www.azslow.com/index.php/topic,154.0.htmlI think it is reasonable to start with 8 strips and 3 buttons per channel (ARM, MUTE, SOLO). Assign faders, one row of knobs and strip buttons. You can also assign bank buttons if you want (but using them for transport may be more practical). I think that is reasonable start point. Other knobs you can use for MIDI Learn inside VSTis.
Sure you can extend the preset later (or ask me to extend it, once you know what you want), but Startup preset you can adopt within half an hour yourself, without any knowledge about AZ Controller. Just follow the video.