Never forget to reply to someone again and set up reminders.
Sometimes you don’t know the specific answer right away and you read the message and forget to reply to them, with closer this won't happen to you again as you’ll be able to set up a reminder to their specific message, you can schedule the time you want to be reminded about that and once its completed you can mark it as done and it would be removed from your “reminders” folder.
1. Click on a contact
2. Open the tab with a small clock item
3. Reminder editor: Type your reminder and schedule the time you want to be reminded at.
4. Click on save.
After that you'll see it on top of your chat, you can mark it as done once the task is completed..