Control+
Q Quit 
L Load 
S Save 
I Insert/Overwrite toggle
P Paper/Text Color toggle
O Non-printable characters toggle
Y Delete line
A Home
Z End
W Next Word
U Page Up
D Page Down
T Top of the document
B Bottom of the document
C Copy - Copy to clipboard. Position cursor the the beginning of a block. Press CTRL+C. Then position cursor to the end of a block. Press CTRL+C again. Max block size is 4 KB
V - Paste from clipboard to the cursor position.