A seam based console is being developed within jBPM. It currently is in jbpm.3/bamconsole. Gravel will not be used there. It still is minimalistic, but will grow over time.
If you want to use the generated (and maybe changed) forms just for the sake of having versioned forms, I'd look at implementing this completely new and without gravel. Maybe you can even contribute some back to the 'new' console.
bamconsole is not still for signaling to flows , it now developed just for reporting and query .
i used jbpm4jsf and gravel just for forms . i wand my console can show form that users made it and without coding.
anyway tanx for your reply.