Is there a way to convert BOD UserArea Data Types to Non-Strings?

The BODs UserArea Data Types are all strings. Is there a way to convert these to the correct data types?

Ex)  <UserArea>
            <Property>
                <NameValue name="oeeh.totlineret" type="decimal">0</NameValue>
            </Property>
       </UserArea> 

The parameter from this is string and need it to be decimal.

 

totlineret          
Shipment/ShipmentHeader/UserArea/Property/NameValue[@name="oeeh.totlineret"]
  
   STRING