Hi,
To print two product labels in one row (effectively 50x30 + 50x30 mm) on the same paper in Odoo, you'll likely need to edit the QWeb report for product labels. While Odoo Studio might offer some basic customization options, it's unlikely to provide the precise control needed to rearrange the label layout in this way. There isn't a standard setting in Odoo to directly achieve this specific label configuration.
Therefore, editing the QWeb report is the most probable solution. This involves modifying the report's code to adjust the label dimensions, positioning, and repetition to fit two labels side-by-side within the desired paper size. This approach allows for the necessary customization to achieve your specific label printing requirement.
Hope it helps