Creating Buttons from a Media Player Input Source

In my Home Assistant setup, I have a Media Control Card that shows my LG TV. If I click on the three dots to the right I can see the various input sources listed. I have created a few scripts for Wake on LAN, Netflix, etc but one that I cannot get to work is YouTube. Netflix in the code comes up as NETFLIX and Prime Video is AMAZON but nothing seems to work for YouTube and a few other things.

So because of this, I thought that I could probably somehow create a button for YouTube and the other sources from the Media Control Card for my LG TV. I can’t seem to find out how I can do this. Can anyone help me with this? I would have thought that it would have been simple to do and it may be but I cannot seem to find out how to do it.