All the Megalodon Wireless Macro Pads supports Bluetooth 5.0, which means that the codes cannot be merged into the QMK branch, therefore resulting in not supporting VIA Auto-detect at this moment. You would have to load the .json file to VIA 1.3.1, to remap the keys. (At least, at this moment, told by the manufacturer).
First of all, download VIA 1.3.1
Install VIA, and import the .json file as a keymap to VIA.
Here is the .json file needed
|File Import Needed?
|Megalodon Triple Knob Wireless Macro Pad
|Apr 25 2023
|If the .json above does not work well, try this one.