How to make a group chat on Snapchat, to send private Snaps and messages to multiple people at once

You can make a group chat on Snapchat in a few taps to send pictures, videos, and chat messages to a select set of people at once.

How to add someone to a Signal group chat or remove users

To add someone to a Signal chat, you just need to open the chat's information page, where all the members are listed.