Hi,

Odoo Studio is the official drag-and-drop tool in Odoo Enterprise that allows customization of forms, reports, and workflows without writing code.

You can activate Studio by clicking the tool icon on any form view (e.g., Quotation), then visually add, move, or rename fields.

Studio also supports adding automation, conditional field visibility, and computed fields directly from the UI.

Odoo Studio is only available in the Enterprise edition; it is not included in the Community version.

Some advanced or backend logic still requires Python or XML even when using Studio.

For Community users, the app invoice_format_editor allows customization of invoice templates without editing XML.(https://apps.odoo.com/apps/modules/18.0/invoice_format_editor)

This app provides configuration options to change the invoice layout and display fields through the UI.

It is not a drag-and-drop tool but offers a structured interface with toggleable field visibility and predefined layout settings.

General form view customization in Odoo Community still typically requires XML unless using additional third-party tools.

For fast and simple form/report design: use Studio in Enterprise, and in Community, use apps like invoice_format_editor for layout customization without coding.

Hope it helps