Sales Revision module for Odoo 11. you can manage different revisions with templates. Each revision will be stored as template.
Create a SO quotation.
Click on the 'create revision' which generates a serial number. Go to 'Revision Lines'.
Go to 'Revision Lines'.
When the revision number is clicked , The list of products under the template will be displayed.
To apply the revision to the sale order, Click the apply revision button.