What is the three dots in between the camera and mic icon in whatsapp on iPhone?

[iMore Question]

Inside a chat, there are three grey dots at the bottom of the screen on the right of the textbook found in between the camera and microphone icons. What do the three dots do and what are they for? Thanks

 

[RECON1]

Honestly I think it's just a separator. I've tried tapping it and such and it does nothing.

 

[kirankannan8]

Yes! Just a separator