So we have 5 production zones or workcenters (WC) where we are building one product at the time at each. But to produce this final product several workers may be doing several different operations at the same time (assembling).

How can we represent this with odoo? Is it possible to make a WC have subWCs?

Alternative WC don't work for us, as we need to track if we are building in the first production zone or on another one.