Clicking on the today link in the date picker brings you to the current date. So if If you are looking at another month, July for example, and you click on the today link, the date picker will automatically bring you to the current month with today’s date highlighted(bold). Select the date to populate the field in your form/flow.
The Date Picker described above only applies to the desktop view. Date and Date-Time controls on mobile devices display device specific date pickers.
The New Line Property will be present for all controls that have the 12 column width selector. Check New Line and the control always appears on a new line. For example: Let's say you have First Name and Last Name controls side by side in your form.