Questions re the Olympus DS50

[Donald L. Roberts]

I am wondering whether there is a manual in accessible format for the 
DS50?  If so, where do I find it?

On the front of the DS50 near the middle, there is what I would call a 
two position rocker on either end with an elevated button in the 
center.  Pressing the left rocker cycles between the various folders.  
But please tell me in detail what the center switch and the right side 
of the rocker do.  I think that one or the other creates some sort of 
book marks but would like more info if someone could provide it.


Thanks.


Don Roberts