Hi, for anyone struggling with key names :
You can find which name k2xi sees for this key by turning logs to debug: Edit the Keyboard2XinputGui.exe.config and change
<level value="Info" />
(line28) to
<level value="Debug" />
Launch k2xi, then mash the key multiple times, just to be sure (and only this key to help diagnosis), then exit k2xi. Open the k2xi.log file, and look for lines like these:
2024-04-05 19:28:02,393 [1] WARN Keyboard2XinputLib.Keyboard2Xinput- unmapped button NumPad9
The part after "unmapped button" (yes this is poorly named...) is the name of the key that was pressed and that k2xi expects in the mapping.ini file.
Don't forget to set the logs to Info again afterwards, as this could impact games performance (debug is very verbose).
Hope this helps !