Does anyboday know of a godo solution for an 'all notes off' feature for midi over LAN in Logic or giga studio?

We are using Logic 7 with 3 giga machines connected via midi over LAN but the 'panic'/all notes off feature in logic does not send to midi over lan devices. Of course it would be best to set this up in logic. We have a temporary workaround where we have a region at the beginning of the sequence which plays notes to all devices, which works, we just would like something quicker really!

Any suggestions?