SamsungTv Binding - display volume in sitemap


I’m new in using openhab 1.7.1 and I make some test with samsung tv using sumsungtv binding.
Connection works well and wiki examples works fine.

I need some information to complete my test.

  1. Is possible to display in my sitemap, for example, what is the volume level, the channel and other information? If possible what is items and sitemap sintax?
  2. Could you give me an example on how to use KEY_INFO command, I try without success, Is possible display some information in openhab from this command?

Thanks in advance