Why doesn't odoo 16 allow to add an accont type, because the present of the profit and loss statement is not presentable because what is visible is only three types of expenses, (Cost of Revenue, depreciation and expenses), then when you click on the expenses all of the type of expenses with an entry will appear, odoo experts say use account groupings but account groupings are only reflected in the Trial Balance. I hope Odoo will bring back the same as in previous versions that can create an account type so that the system can adopt what is needed for reporting depending on the company.