Final answer:
Buttons in the 'Refine' group of the Search Tools Search tab allow you to filter search results within a document or application. You can refine your search by text, images, and other document properties. Additionally, you can navigate through document changes using the Previous and Next buttons.
Step-by-step explanation:
Buttons in the Refine group in the Search Tools Search tab allow you to narrow the search results. These buttons provide options to filter your search by various criteria to help you find the specific information you're looking for within a document or dataset. For example, you can specify whether you are looking for instances of your search term that appear in the form of text, images, tables, or specific properties like author name or the date a document was modified.
In the context provided, to navigate consecutively through changes, you can click the Previous and Next buttons beside the Accept and Reject options in the tools ribbon. This feature is commonly found in word processing and data management applications and is essential for reviewing and editing documents efficiently, especially when tracking changes made by multiple contributors.