bbsetting_item_data_qty_blank_in_forms

A new bbsetting for BB2.0 is bb_item_data->bbsetting_item_data_qty_blank_in_forms which sets the qty field in financial docs to 'blank' as opposed to zero or 1. It is part of the bb_item_data class. To edit this setting go to admin>module settings and select bb_item_data from the class list. Then select this bbsetting from the list.