When you have multiple Google Forms, the best way to present them is with a Google Site.
Here is a sample with 3 Google Forms:
Create a new Google Site.
Copy the “preview” link for each of your different Google Forms.
When you are ready, click the PUBLISH button.
Give your site a simple name; “mygoogleforms” (Do not use “mygoogleforms”, this is an example.)
The final address will look like this;
Use this site address as the Home Page URL in Scan to Web
You can create a QR barcode for your web site URL at https://berrywing.com/barcode
Then when you start Scan to Web, you’d have the list of forms. Tap on the one you need at the time. When complete, simply tap the home button to get the list of forms again.