You can add special description to any field within a form – tooltip. This description can be used as a hint for users where required field format is described, for example.
Go to Virto Form Extender Settings of a required list and add new settings.
Enter the text which will be displayed as a field description in the “Field tooltip” block. Click “Save” to save the settings.
Now users will see the description of this field when they view or edit list or add a new item to it.
It is also possible to leave an URL in field description. URL should be entered in HTML format. For example, if you want to add a link to your company site, the HTML code should look as follows:
<A HREF="mycompany.html">My Company</A>
And the link in a field tooltip will look as My Company.