Full screen is not full screen?

[geeksquadofun]

I have both a Nexus 7 and a Galaxy Tab s. 8.4

When reading my messages on my N7, I get a full screen for each message,  swiping brings the next message,  all is  well. Love it.

When reading same on my newer,  faster Tab S,  I cannot get a message full screen,  there is always a list of messages to the left...

how can I get rid of the messages list and only use the full screen for 1 message.?

Thank you.

[Kostya Vasilyev]

Please try: app settings -> look and feel -> "Portrait mode" (two items below "Two panel mode") -> change from "Vertical" to "Vertical, with full-screen message view".