Milled Slots appear as Drilled holes

Thougth someone might have a solution for this:

Slots associtated with a component (generate by ECAD), get translated to drilled holes in the PCB. The solution that we have come up with is to put a copy of the slot in the board shape. If we move the component, then we lose this functionality.

Does anyone know how to comunicate a slotted hole from ECAD to MCAD?

SolidworksCircuitworks