This idea is related to the filter operators on user overview:
Scenario: You want to create a segment to track how community members from your company’s Tier Y Accounts are participating in the community. You would like to go to User Overview, then filter by email, and then use AND and OR to include several Accounts in one segment.
What happens: While on the email filter, you are able to include AND and OR to pull several Accounts at once. You can search for members whose email ends with pink or yellow or red.
