We recently released an enhancement that gives you more control over QR Codes that will simply present a text message.
We greatly increased the size of the field for entering the text message.
This will give you greater visibility in case you are entering a message that contains a lot of characters. Also, it will allow you to enter line breaks for greater control of the formatting. (We tested that in QuickMark, and it worked great.)
Give it a try, and let us know what you think!