Create and Read QR Code Checking

Hello! 

I need to use QR Code in my tickets and doesn't work. I put the tag [TICKET_QRCODE]  in the layout of the email that I send to the registrator. 
This QR Code does not have the URL to do the checkin. 
This the other problem that I have: in my tools I don't have the option to do the checkin. 
My questions are: 
1. How to configurate the QR Code in my ticket and, 
2. How to configurate to do checking of this QR Code. 

Thanks, 

Hello

I believe this documentation eventbookingdoc.joomservices.com/advance...lt-in-qrcode-scanner will help you

Regards,

Tuan