Piper seneca as cargo plane

[Dufo]

We are in process of starting to use the Seneca 3 as a cargo airplane.
What I would like to know is what do you recommend as appropriate actions in case of cargo fire/smoke?
POH/AFM only provides engine fire and cabin heater procedure but nothing related to cabin/cargo fire.

Any ideas?

Thanks

[Doodlebug]

With that small a cargo load prevention is surely easier than cure, i.e. know what's in the five boxes that are going in the back.
That said, if you really do have smoke in flight in your Seneca the best you can do is GET DOWN as soon as possible, consider cracking open overwing door/storm window for smoke evacuation.