A knowledge base article about Creating and sharing filters provided by the UC Berkeley IT Service Hub - Knowledge Portal
A filter is a set of conditions applied to a table in order to find and work with a subset of the data in that table. Users can apply, modify, create, and save filters. The current filter is indicated by a hierarchical list of conditions—breadcrumbs—at the top of the table.
Breadcrumbs offer a quick form of filter navigation. They are ordered from left to right, with the leftmost condition being the most general and the rightmost condition being the most specific. Clicking a breadcrumb removes all of the conditions to its right. Clicking the condition separator (>) before a condition removes only that condition.
To quickly filter a list using a value in a field, right-click in the field and select Show Matching or Filter Out (for date fields choose from Show Before, Show After, and Filter Out). These functions add a condition as a rightmost breadcrumb of the current filter.
To save or share a filter:
For more detailed information, see the ServiceNow Wiki article on Using Filters and Breadcrumbs