Harmony tiles for volume up/down and ch up/down?

Hi again, so I've connected my harmony hub to HE, and HE to HOOBS and my Siri correctly. (I think). so now I can turn my TV and Pioneer receiver on thru Siri. I can also control volume up/dn, ch up/down and mute through the HE dashboard (picture attached), but I can't control those items thru Siri voice commands. There are also no tiles for that stuff in my dashboard, just in the devices section. Not sure if that's my problem, or just a coincidence.

So, the question is 2 part: How do I add these functions as tiles in HE dashboard and/or add the functions to Siri voice? I'm assuming if I add tiles for these functions then I will be able to control them thru Siri. Am I totally off, or correct, and how so I do that?

Thank you for any help!!!