Redirect to Despatch Note after Auto-Generating Invoice

A new BlueBox setting has been installed which redirects the 'view' back to a despatch note after a debtors invoice has been auto-generated from it. The usual behaviour is for the end document to display the debtors invoice. bb_sales_debtors_invoices->bbsetting_inv_show_dsp_after_add - if set to 1 (on) will trigger a redirect back to the despatch note automatically.