Analogue-sequencer

Hello, I just received a new P3 from AnalogueHaven yesterday. Mine did 
not come with a users manual so I downloaded the online manual. My 
machine has the latest OS and from what I can see, the online manual 
is also the latest.
OK, so here is my problem. I'm trying to access page 5 in play mode so 
that I can set the midi channel to something other than 1. The manual 
says that in play mode, I should press the page key and select the 
page that I need from the track/pattern buttons. When I do this, the 
track/pattern buttons will only mute and unmute tracks and do 
absolutely nothing far as bringing up another page. Multiple presses 
of the page key alone toggles between the first 3 pages only. 
Can someone tell me how to get to pages 4,5,6?? Thanks