Hi,

Odoo Studio has limitations when it comes to automatically displaying fields from a second model directly within a many2many list in your first model. While you can customize the form view that appears when editing items in the many2many list, this only shows related fields during editing, not directly in the list view itself. To achieve the desired display, you would need to create computed fields in your first model to fetch and display the desired fields from the related model, which requires Python code and is beyond Odoo Studio's interface. Alternatively, you could develop a custom Odoo module for complete control over the display, but this requires significant development expertise.