Signal supports video conference calls with up to 40 participants, which is large enough for a friendly chat or a small group ...

While Signal ... Find the chat you want to pin to the top of the screen. Tap and hold it until the banner appears at the top of the screen. 3. In the banner, tap the Pin icon.

Open the Signal app on your iPhone ... tap "Archived Conversations" and then tap and hold the chat you want to restore. Then tap the Unarchive icon in the banner, which is shaped like a folder ...