This field allows you to define labels where you need them on the form.
By clicking on the Menu -> Create -> Label or by clicking the icon you can design and define on the form template:
the position in the Form,
the font size (from 1 to 40),
the letter space (from 0 to 10) means the space you want to leave between one letter and the next one,
word space (from 0 to 10) means the space you want to leave between one word and the next one.

Options with round check-boxes selection:
Font style: Italic or Normal,
Font weight: Normal or Bold,
Font family: by default it will show the Arial font and you can click on the Change button on the right to change the font

To move or resize the label see: selecting, moving or resizing fields.
It can be positioned anywhere in the form and once placed it can be moved or resized.

In order to edit the field label click on the Edit Label field and select the label you want to edit.