Topics: Lidar and indoor navigation in Seeing AI; reading PDF’s; changes to AIRA subscriptions;  icon disappeared from home screen; navigating e-mail on iPad; turning off battery optimization for Air Pods Pros; full screen for Facetime call; hiding toolbar on Pages app; chronological timeline on Twitter app;  recommendations for alternative to Voice Memos - Pocket recorder and Just Press Record;  iBUG Bytes - four-finger single tap; is it possible to dictate phone number when creating a contact; Karaoke feature in Apple Music; is it possible to edit an e-mail dictated by Siri; Bard volume goes up suddenly; update to Envision app; changing view for Contacts app; Apple Fitness app free for Silver Sneaker  members; signing up for Apple Fitness.