The problem is that the remote.conf what I found has no explanations, so I can't bind the function button to the IR code.
In the modifications to the IR code tables I made earlier, I commented everything, so for example the OK button code is 28:
LibreELEC-AML/projects/S912/devices/Generic_S912/filesystem/etc/amremote/remote.conf at master · dtechsrv/LibreELEC-AML
'Just enough OS' for Kodi for some Amlogic TV boxes - dtechsrv/LibreELEC-AML
github.com
You can find keyboard codes for Linux here, most of them are the same on Kodi:
linux/include/uapi/linux/input-event-codes.h at master · torvalds/linux
Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.
github.com
However, if this is the only button that doesn't work, try this first:
0x06 28
But, if your remote.conf contains any comments or explanations, you can send it and I can help you make a working one based on them.