To create a List/filter for Contacts module, please follow the below steps:
1. Click on Menu
2. Select the desired module where you wish to add the list
3. Click on the list dropdown bar in the module
4. Click on +New List
5. Provide a List Name
and enable the Default checkbox to set the list as default so that you and other users can view only most important records.
6. Select desired columns
you would like to see in a custom view and also the sorting
7. Add conditions
if you wish to filter out the records.
8. Select the list of users you wish to share the list with by selecting them under the Share the list
9. Click Save
Refer : List Creation