Create a New Filter
Filters are a way for you refine your target account, people, and opportunity lists to uncover subs-sets of audiences or activities.
Click create new to create a new saved filter.
Add a Title - Name of the new Filter
Select your Object type - Choose which type of results the Filter should return (i.e People, Accounts, Opportunities, Activities)
Set your Visibility - Who can view the Filter
Public - Visible to everyone in your organization
Private - Visible only to the creator of the Filter
Learn more about visibility rules here.