Note: setting emacs/vi keys ON has no effect on line-editor bindings.
This is the Alternate Bindings keymap:
ENTER Input complete - RETURN
TAB Input complete - TAB, Do
ABORT Input cancelled - Ctrl-G, Ctrl-O, (Ctrl-C on some systems)
ERASE Erase the line - Ctrl-U
BACK Cursor back char - Left-Arrow, Ctrl-B
FORW Cursor forward char - Right-Arrow, Ctrl-F
BACKW Cursor back word - Ctrl-P
FORWW Cursor forward word - Ctrl-N
BOL Go to begin of line - Ctrl-A, Home, Find
EOL Go to end of line - Ctrl-E, End, Select
DELP Delete prev char - Ctrl-H, DELETE, Remove
DELN Delete next [1] char - Ctrl-D
DELPW Delete prev word - Ctrl-R
DELNW Delete next word - Ctrl-T
DELBL Delete to beg of line - Ctrl-X
DELEL Delete to end of line - Ctrl-K
UPPER Upper case the line - Ctrl-^
LOWER Lower case the line - Ctrl-_
LKCMD Invoke cmd prompt - Ctrl-V (in form text fields, only) [2]
[1] "next" means the character "under" a box or underline style cursor; it
means "to the immediate right of" an I-beam (between characters) type
cursor.
[2] Follow Ctrl-V with the key "e" bound to the EDIT function,
to edit the form's textarea field using an external editor.