-The main usage of selector is as a super shell-history. With the
-correct option, it will inject the selected line into the virtual tty
-input buffer, hence allowing the user to edit the line and execute it
-as a standard command.
+The main usage of selector is as an efficient search in the shell
+command history. With the correct option, it will inject the selected
+line into the virtual tty input buffer, hence allowing the user to
+edit the line and execute it as a standard command.
+
+Selector is also a good tool to test regexps.
+
+.SH "KEYS"
+.PP
+
+Keys corresponding to ASCII codes between " " and "~" add a character
+to the pattern string. The Backspace key, "^H" and "^?" delete the
+character immediately on the left of the cursor, while the Delete key
+and "^D" delete the character at cursor location.
+
+The Up and Down cursor keys move the selected line accordingly, and
+PageUp and PageDown move by ten lines. The Home and End key move to
+the top and the bottom of the list respectively. The return key
+selects the current line and exits.
+
+The shortcuts "^A", "^E", "^U", and "^K" do somehow what they do in
+readline, and you can exit selector without doing anything by either
+interrupting the command with "^C" or by typing "^G".
+
+The "^R" key switches between the standard multi-substring mode and
+the regexp mode, and "^I" between the case-sensitive and
+case-insensitive modes.