SAP ETM - Shipping and PBE in hours

Hi,

Do someone knows if its possible to determine hours on the shipping document (J3GH) and on the PBE document (J3G$).

We need to rent and equipment 4 hours to a recipient and the others 3 hours to another recipient.

On the requisition note, its possible to define hours. But, at least with our configuration, is not possible on the shipping or PBE (this two are on days, and because is nor possible for the equipment to be on more that 1 recipient for one day .. we cannot complete our scenario)

We need to control stock.

Thanks,