Goods Receipt PO WebApp 2.0 display default Bin Location automatically

When entering a Goods Receipt PO via the new WebApps 2.0 the system will automatically receipt the stock into the default Bin if none is specified however, it would be nice if the default Bin was pre-populated in the Bin field. 

That way the receiver is able to view where to store the received goods.

Also, is it easy to customise the WebApp forms?  I would also like to pre-populate the Quantity field with the expected quantity field to minimise data entry.