--- /dev/null
+<para>
+This option erases all routes in the receiver before doing a transfer.
+</para>
+<para>
+This is a convenient option to use in automated processes where you want
+to ensure the units starts with a clean state before sending routes to
+it. Using this option on transmit is a better idea than doing it on
+receive since the latter would erase all the waypoints before asking the
+unit to send all the waypoints.
+</para>
--- /dev/null
+<para>
+This option erases all track data in the receiver before doing a transfer.
+</para>
+<para>
+This is a convenient option to use in automated processes where you want
+to ensure the units starts with a clean state before sending track data to
+it. Using this option on transmit is a better idea than doing it on
+receive since the latter would erase all the waypoints before asking the
+unit to send all the waypoints.
+</para>
--- /dev/null
+<para>
+This option erases all waypoints in the receiver before doing a transfer.
+</para>
+<para>
+This is a convenient option to use in automated processes where you want
+to ensure the units starts with a clean state before sending waypoints to
+it. Using this option on transmit is a better idea than doing it on
+receive since the latter would erase all the waypoints before asking the
+unit to send all the waypoints.
+</para>
--- /dev/null
+<para>
+This options powers down the Navilink receiver once any transfers are
+complete.
+</para>