The following apps have been tested and have been approved by IT Libertas developers, in order to help you use Odoo. When programmers had faced any bugs, they fixed them. The resulted modules are structured and would be used as a base of Odoo implementation. Besides, each description contains links to download an application and to configure it with your own hands
The app let users select multiple internal categories for a product.
Note: those categories serve only for classification and do not influence other features implied by internal categories (such as accounts and so on).
The app let you turn off quick create of many2one fields of certain models globally.
In order to activate the function for a definite model, go to the menu Settings > Technical > Database Structure > Models. On a model's form flag "Avoid quick create".
The app changes a position of the button "Add an item" in X2many tables depending on the attribute editable (top / bottom).
Be cautious: it works only for tree placed on a form view: <field><tree>...</tree></field>.