@vindex ns-use-proxy-icon
@item ns-use-proxy-icon
This variable specifies whether to display the proxy icon in the
-titlebar.
+titlebar. The proxy icon can be used to drag the file associated with
+the current buffer to other applications, much in the same way you
+would do it from Finder. You might have to disable
+@code{tool-bar-mode} to see the proxy icon.
@vindex ns-confirm-quit
@item ns-confirm-quit
DEFVAR_BOOL ("ns-use-proxy-icon", ns_use_proxy_icon,
doc: /* When non-nil display a proxy icon in the titlebar.
-Default is t. */);
+The proxy icon can be used to drag the file associated with the
+current buffer to other applications, much in the same way you would
+do it from Finder. Note that you might have to disable
+`tool-bar-mode' to see the proxy icon.
+
+The default value is t. */);
ns_use_proxy_icon = true;
DEFVAR_LISP ("x-max-tooltip-size", Vx_max_tooltip_size,