This post will help you to add an action window in Odoo. Odoo13: <act_window id="action_make_bank_payment" name="Do Bank Payment" res_model="account.ob.payment" binding_model="account.move" view_mode="form" target="new" binding_views="list,form" domain="[('type','=', 'in_invoice')]" groups="account.group_account_user" /> Odoo12: <act_window id="action_make_bank_payment" name="Do Bank Payment" res_model="account.ob.payment" view_mode="tree,form"...