As with the individual chats, you can sort by tapping on the circle in the bottom left corner.
Warning, it send automatically after you lift your finger off.
You might want to make sure images are always saved from your family for example, while you'd prefer not to have all images from a group chat in your gallery or camera roll.
It's also possible to set the duration of time you want the Screen Lock feature to kick in.
Now, you should have something like this in the working directory if you do not have 32 bytes hex key.
Pocket-lint WhatsApp Chats tips and tricks Reference and reply to a specific message Ever been talking about multiple things in a WhatsApp chat and need to reply to a specific message? Save your data allowance If you've got a limited data allowance, you don't want WhatsApp munching it all away.