Completed <timeout> support, to use it with p3d use it along the lines:

<slide>
    <layer>
        <paragraph>Test</paragraph>
        <timeout>
            <idle_duration_before_timeout>3.0</idle_duration_before_timeout>
            <idle_duration_before_action>5.0</idle_duration_before_action>
            <key_starts_timeout_display>A</key_starts_timeout_display>
            <key_dismiss_timeout_display>S</key_dismiss_timeout_display>
            <key_run_action>D</key_run_action>
            <timeout_jump slide="0" layer="1"></timeout_jump>
            <timeout_event>w</timeout_event>
            <timeout_broadcast_event>t</timeout_broadcast_event>
            <image width="0.5">Images/lz.rgb</image>
        </timeout>
    </layer>
    <layer>
        <model>cow.osg</model>
    </layer>
</slide>