Imagine you want to find accounts with open opportunities where there are at least three VPs with high engagement.  You can do this by adjusting an operator of a relationship filter. 

When using Relationships in Selectors, you have the following operators:

AnyAny Relationship between objects
NoNo match the specified value
At LeastEqual to or above the specified value
At MostEqual to or below the specified value
Pipeline ValueTotal Pipeline Value of Opportunities
Engagement MinutesTotal Engagement Minutes for Accounts or People