How do I select several items with my finger?
On a phone, there is no right-click: you press and hold instead. It’s the same gesture for messages, files and photos.
Step by step
Put your finger on a message, a file or a photo, and hold it there for half a second.
Selection mode opens: boxes appear, and the first one is checked.
Tap the other items you want to choose.
Choose what to do at the top of the screen (move, delete…). The cross exits the selection.