Dynamically set canvas size and margins

We have purchased a license for the WordPress plugin. We have launched the website at: https://sciana.kreator.kartony24.eu/

What we would like to achieve is to dynamically set the canvas size and margins (printable areas on the canvas) when loading the editor. The idea is that users will access the WP page from an external URL, where they will select the product dimensions. Based on that, we need to display the appropriate design area. How can this be achieved?