Inherit project form : Invoicing Data project.project form Inherit project form : Customer project.project form Inherit project search view : Invoicing Data project.project search account.analytic.line.search.account_id account.analytic.line search account.analytic.line.form.account_id account.analytic.line form account.analytic.line.tree.account_id account.analytic.line tree account.analytic.line.inherit.select account.analytic.line search 10 Bill Tasks Works account.analytic.line form tree,form [] {'search_default_to_invoice': 1} This lists show you every task work you can invoice to the customer. Select the lines in order to generate the invoices automatically.