Inbox page

Step 1:

Click to enter any conversation

Step 2:

Move the mouse to the contact name of the profile on the right, and click the pencil icon

Step 3:

Enter the name you want, then click on the right mark icon ✅

Audience page

Step 1:

Move the mouse to the name of any contact, then click the pencil icon

Step 2:

Enter the name you want, then click on the right mark icon ✅