Hello
We are sorry for inconvinience but moving shorcode area to the place showed on the screenshots requires additional customization which lays beyound the scope of our support. I propose you 2 options to put shortcode:
1.You may put it to the widget sidebar area on the right/left as on our demo>.
Please navigate to the Theme options -> Single product page and select sidebar position.
Then put 8theme-QRcode code widget to the Single Product page sidebar area.
2. You may put [qrcode] to the description field or within the custom tab and any custom html feld avalible from the backend panel.
Thank you for understanding
With best regards
Brian Johnson