I METHOD Describe a specific input method, or RET for current.
k KEYS Display the full documentation for the key sequence.
K KEYS Show the on-line manual's section for the command bound to KEYS.
-l Show last 100 characters you typed (lossage).
+l Show last 300 input keystrokes (lossage).
L LANG-ENV Describes a specific language environment, or RET for current.
m Display documentation of current minor modes and current major mode,
including their special commands.