Surface Pro 9 Type Cover Not Working in WinPE

Dear Microsoft Surface Support Team,

I have created a custom WinPE recovery environment for my Surface Pro 9 (Intel).

After injecting the official Surface driver package, the touchscreen now works correctly, but the Type Cover keyboard and touchpad still do not function.

The official Microsoft Recovery Drive supports all three devices correctly, so the hardware is not at fault.

Could someone from the Surface engineering or deployment team advise:

Which driver enables the Type Cover in WinPE?

Are additional WinPE Optional Components required?

Is there an official Microsoft procedure for creating a fully functional WinPE image for Surface devices?

I can provide full technical details if required.

Thank you.

Ashok Arora