Hoping you guys can help. You helped me massively before with Shape issues.

I have a Soundstage and also a LG C9 (not that that matters at this stage but I'll have some follow up queries re setting up the remote with the C9 or maybe just via the Soundstage)

So I decided to treat myself to the Remote but to save some money I had an opportunity to buy second hand (as new) but it's arrived without a manual and here's the issue the buttons are different and so likely came with a TV and opposed to the independent product but I am completely stuck with how to set it up. As soon as I turned it on it went through a few quick things and as I had the app to hand I click on the Shape and a few mins later it was paired and I can use the basics e.g. volume and next track but as the buttons are different to every manual I can download I don't know what to do as I don't have many of the default buttons but wonder if I can just programme to be fully featured or should I return it (the person has offered to refund)

Here is a picture of the button layout. (attached)

Would love some help to get started or just to honest and say if it won't work for me (no music button for a start seems strange)