Can't Repeat A Track Using Sonos App with Amazon Music Service, Discrepant Functions with Alexa & Sonos App???

I'm sure this has been asked a thousand times, but I can't find it under the search menu. I just got a Play:1 and in discovering more about just using the Sonos App, I was listening to a station that I have selected in Amazon Music. I wanted to repeat a track, but there was no was of doing so via the Sonos App. This does not make sense, especially if I heard a song a couple of minutes ago, and want to know what song it was, artist, etc. I can't figure a way to back up the app or look at play history.

Now, you may be asking, why are you posting this in the Alexa section? Because, when I use Amazon Music through Alexa app or voice control, I cannot control the volume of my Play:1 with my iPhone. I guess that is an Amazon thing, but this too is foolish and creates a fragmented system.

I have to go to Alexa app to back up a track or figure out who it was, and then I have to go to the Sonos app to control the volume of the speaker???

This can't be the way it is designed to be. I hope I am just missing something very obvious and I will be able to use one app to give me basic functionality like volume control, backing up a track, looking at the history of a station or playlist, etc.

Thanks