options which don't make sense to change in the middle of a session
(for example, you can't switch from SSH to Telnet in mid-session).
+You can save the current settings to a saved session for future use
+from this dialog box. See \k{config-saving} for more on saved
+sessions.
+
\S2{using-copyall} \i{Copy All to Clipboard}
This system menu option provides a convenient way to copy the whole
protocol. Due to fundamental limitations of Telnet and Rlogin, these
protocols do not support automated password authentication.
+\S2{using-cmdline-agentauth} \i\c{-agent} and \i\c{-noagent}:
+control use of Pageant for authentication
+
+The \c{-agent} option turns on SSH authentication using Pageant, and
+\c{-noagent} turns it off. These options are only meaningful if you
+are using SSH.
+
+See \k{pageant} for general information on \i{Pageant}
+
+These options are equivalent to the agent authentication checkbox in
+the Auth panel of the PuTTY configuration box (see
+\k{config-ssh-tryagent}).
+
+These options are not available in the file transfer tools PSCP and
+PSFTP.
+
\S2{using-cmdline-agent} \I{-A-upper}\c{-A} and \i\c{-a}: control \i{agent
forwarding}