keyboard problems with PB 3400c

[Paul Scott <waterhorse@ultrasw.com>]

Where can I learn how to deal with missing standard keys on PB 3400 
keyboard?

How do I do Shift-PageUp, Home and End (in places where Ctrl-A and Ctrl-E
won't work)?

How do I middle-click to paste?

TIA for any help,

Paul Scott