This feature is part of the Visforms Subscription and not available in the free Visforms version..
We propose reading the documentation from the beginning, starting with the Introduction and System requirements. We will not repeat concepts and explanations made in previous parts of the documentation, here.
Please make sure, that you have installed your Visforms Subcription.
What you get
This will add three new form layout to your Visforms installation, which you can use immediately with your forms. The new layouts can be selected just as any other Visforms layout in the form configuration option "form layouts" on the tab "advanced".