The fields table on the xEdit page is one of the most useful ways to make page by page changes on a document and edit fields en masse, especially if you have a complex file. Instead of navigating through pages and selecting individual fields to make amendments, use the tabular layout to:
Set up field ordering (order is top-down if blank).
Easily switch validation types.
Edit options for dropdown fields.
Amend alignment on fields.
Change font size for all fields on a page. (Hold Shift key + select font to change all).
Set fields as required/optional.
This demo video shows how you can locate it and make the most of this feature: