In CODE you can set tri-state check boxes to grey, clear or checked.
If you set the check box to grey, no parameter will be passed to the host and the default currently set on your host system (not necessarily the installation default) will be used.
If you set the check box to clear, the parameter displayed to the right of the check box will be passed to the host.
If you set the check box to checked, a different option (displayed to the right of the check box) will be passed to the host.
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