Scrolling from within terminal emulators

[JCA]

  I have noticed that when starting rscreen as a process running on a
terminal emulator (xterm, gnome-terminal) the scrolling capabilities
of the terminal emulator seem to be disabled. In particular, the
PageUp, PageDown keys in the keyboard, that allow one to move up and
down the output in the terminal emulator (up to the number of lines
saved by this application) do not work anymore.

  My query: Is it possible to map the scrolling capabilities built
into screen on to the PageUp, Page Down keys?