The Layout Editor outputs one huge page which cannot be printed with a standard printer only capable of A4 or A3 or whatever is standard in your country.
There exists tools like http://posterazor.sourceforge.net/ and others, which generate multiple small pages from one huge page which can be printed and reglued afterwards.
But these tools are optimized for fotos, not technical drawings. They are
- not dimensionally stable,
- dont print corner marks,
- dont print a reference ruler
- and are clumsy to use.
Please consider to integrate above features into Layout-Editor