Managing Messages
Delete unwanted messages, forward messages to other contacts, copy and paste message content, and lock messages or add them to your favorites to prevent them from being deleted by accident.
1. Open 
Messaging.
2. In the list of message threads, touch a contact name or phone number to view your conversations.
3. Touch and hold a message, and then follow the onscreen instructions to forward, archive, lock, or share the message.
Questions about your Huawei Mate 10? Post in the comments!
Huawei Mate 10 Manual [PDF]