Hi,

Unfortunately, Odoo 19 Studio has limitations that prevent you from directly printing multiple selected records on a single page within a report. Studio is designed for basic customizations, and controlling pagination requires modifying the underlying QWeb templates, which is beyond its capabilities.

To achieve the desired result, you'll need to directly modify the QWeb template used to generate the report. This involves identifying the template, editing its XML code to remove elements that force page breaks (like <t t-call="web.html_container"> or <div class="page">), and adjusting the layout to ensure all records fit on one page. Alternatively, you could create a custom action to combine data into a single record for printing, but this is less ideal. For complex scenarios, a custom Odoo module might be necessary. Remember to back up your database before making changes and thoroughly test the modified report. If you're not comfortable with XML and QWeb syntax, consider seeking help from an Odoo developer.

Hope it helps