operations related to production orders

Hello. I think it would be nice if one could view the list of operations(work orders) with start/finish buttons related to particular production order.
I mean the aditional window action Work Orders in the Productions Order form view, like:
<act_window
            domain="[('production_id', '=', active_id)]"
            id="act_ops"
            name="Work orders"
            res_model="mrp.production.workcenter.line"
            src_model="mrp.production"/>

So one can view related work orders in a new tree view. It's more convinient in Gtk client.