xfce4-terminal with drop-down on Openbox

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Hi everyone,
I installed xfce4-terminal and I want to use the drop-down feature.
I added in my rc.xml the lines:

    <keybind key="F12">
      <action name="Execute">
        <command>xfce4-terminal --drop-down</command>
      </action>
    </keybind>

The F12 button indeed opens the drop-down terminal, but it doesn’t close it if pressed when open (it does a flickery animation though). Does anyone here know how to make it close for the same button? I know it’s an option with external keybind manager, but I prefer to do it with the xml. Thanks ahead