Data Table. This widget inserts a table with the form submissions received.
Number. The number widget can display the submission count for your form (Data → Form Stats, Select Field Type → Submissions) or information from a Number field in your form (Data → Field, Select Numeric Field → your preferred field). In the latter case, you can choose to display the total count, the minimum, maximum, avarage or several other possibilities. This widget allows for selecting the text and background colors.
Text. Using the text widget, you can insert text or other elements, in a What You See Is What You Get editor. Click on Edit HTML Block and insert the content.
You can adjust widget positioning the same way you do with form fields in the Form Editor: drag & drop them in the main view. To delete or duplicate a widget, click on it and use the two controls in the top-right corner.