System message - change it to POP-UP

System message - change it to POP-UP

The system message is showing when client adds product to the cart
Position of this message is top of the site.
There is no problem with such behavior at desktop.

But it scrolls to top at mobile phone. Client loses the site position where he was at.

Is this possible to change system messages for Joomshopping to pop-up style?

UPDATE:
I found addon "Product add - Popup message"
It almost solves my problem. But it reloads page, so it scrolls page to top.

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Aw: System message - change it to POP-UP

See addon:
https://www.webdesigner-profi.de/joomla-webdesign/shop/addons/ajax-cart.html