Fix “Page Up” key in Terminal.app to work with irssi

Recently while using the OS X Terminal I noticed that the “Page Up” and “Page Down” keys do not send an actual page up sequence to a session. It seems that the default behavior is to manipulate the Terminal.app’s built in buffer. This works well for every day use in the Terminal, but if you are using a program like irssi, that has its own buffer, this can be an annoyance. The solution is simple and can be solved with a simple key combination.

Powerbook, ibook and Macbook owners can try using :
[shift][fn]-[page up] or [shift][fn]-[page down]
If you have a standard keyboard:
[shift]-[page up] or [shift]-[page down]

If you would to edit any other keyboard settings in the Terminal, here is a screenshot for your reference. Please note that this is a screen shot from OS X Leopard (10.5) which will differ from OS X Tiger (10.4).