Facebook Messenger Read more at wersm.com
seems to be working on its new feature. The new feature is likely the snooze notification feature.
Just the way you snooze your morning alarm, the snooze feature will let you answer a specific message later through notify you.
The feature is basically helpful for those who prefer replying to other during their own time.
This feature will enable you to dismiss the message and then remind you that you need to reply them later.