Work Task Cost Categories - Units

Hi all,

is it possible to assign UoM directly to a Work Task Cost Category?

At the moment our Technicians have to add the unit every time they add an expense in the MWO App from the complete Units list.

The non-inv sales part connected to the Cost Category has a unit defined (Sales Unit of Measure).
Can this be applied automatically to the cost category connected to the sales part?

Thanks,
Chris