I was hoping for the easy solution by asking about the remote AV1 setting, but since you already did it, we have to go further.

When you say you want to learn select/ok, select/video, etc, I assume you mean you are using the easy scroll key on the LP211 to select the function you want to learn, and then you are pressing the middle button on the LP211 remote to send the signal to the Philips remote. Is this correct? When you perform this operation to send a signal to the receiver, it works, right, so it should also work sending it to the Philips, and I have no idea why it doesn’t.

The manual says, for the 5 digit codes, that you have to call the helpline number given on page 145 to obtain the 5 digit code for the missing function. This means there is no list to download and you have to call the number given.