Having the ability to send the same (or better yet, a customized message depending on IF (keyword IF) the person is a contact or has a name in WA) would be incredible. WA already has a 'broadcast list' feature, however in order for that to work, all people you send a message to need to have YOU added as a contact, AND you need to manually add everyone to that list from your contacts instead of being able to easily select all members of a group. This would be super helpful for promo/updates that need to be seen by all members. As well as tracking who has been reached out to about certain things. I'm in and/or run many groups on both WhatsApp and soon Telegram, so having the ability to easily communicate with and promote things to those members (and bonus if we can still manage their stage) that would be super helpful.