Running Odoo 12.0-20190313 (Community Edition) on Debian 9.7 Stretch

I just need to print out my POS receipts in A5 format. Can anybody assist in how to go about that?

I'm not sure exactly what view to modify in Technical/User/Views or at the POS ticket file (/usr/lib/python3/dist-packages/odoo/addons/pos_ticket/static/src/xml/pos_ticket_view.xml)

Or if I can somehow set the POS receipt to use the Qweb used in Invoices/Quotations/Delivery Notes, how do I do this?

Any help will be highly appreciated.