The form element is not available for everyone at the moment.

With the form element you can easily create a form in a template page and let it send messages to an e-mail address.
To start creating a form, drag the general form element in the page. Within that element a form can be created by dragging small form elements into it. For most forms you will need a few input fields and a button.
After dragging these items inside the form area you can select them to change certain settings.

To change labels or button text you can just select the text and start typing.
Changing input names can be done by selecting the field and clicking the small cog/settings icon. On the right side a menu will open where you can change a few things.
In the menu on the right you can also change the e-mail address where the form should post to.