This is an overview of a contacts page: 

Filter button allows you to filter your list of contacts: 

Sort button allows you to sort the list of contacts as below: 

Terms explained:
My Contacts: Allows to view your contact list
All Contacts: Allows you to view all contact list
Employees: Allows you to view all employee contacts
Projects: Allows you to filter contacts by projects
Groups/Trades: Allows you to filter contacts by groups/trades
Manage Groups: Allows you to Add, Edit or Delete Groups/Trades
Clear Filters: Removes all filter previously applied
Import: Allows you to import contacts using CSV file
Export CSV: Allows you to export all the contacts into CSV file
Remove Last Import: Allows you to remove last import 

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