Dear customer,

Thank you for your contact. First of all, we do have the product those features is the same as CPO. The CPO plugin will not work in our product.
Our plugin can also has feature "Printing option" to change the design size based on the attribute setting inside the back-end. You can use this method instead of using the CPO. The CPO will not affect the size when you design in the site. It just changes when you print the product.

Best regards,
Ken

I feel this is another sale reply .
My question was if this plugin can work interactively when user change the size it can allocate that size to the design side in nbdesigner and changes it on the design platform .

I already know the design sizs can change in the back end

Hello Sgatecanada,
Regarding your question that relates to CPO, we have clearly confirmed that it will not work with our product.
There is no sale target on this request.
Best regards,
Ken