Add the print option from a plugin to another plugin in front

My thermal printer works with its default WordPress plugin on the WooCommerce dashboard, and it uses the cloud to do prints. I use a POS plugin for in store sales, but it prints only using the browser’s printer dialog box. I want to have a print button that sends the POS prints to that thermal cloud printer. I attached both print buttons on WooCommerce backend (Cloud printer) and the POS printer. The cloud print option should be added next to the current POS print button.
All changes should be delivered as an individual plugin or function and any of current POS or printer’s plugin files should be changed to avoid any issue while updating them.