What is the record button in Persona?

I see the record button is top record animation sequences it looks like but…
What would be the proper way iof doing it in Unreal??
I don’t see how you’d be able to pull off anything at all with just a mouse clicker.

Is there any tutorials or could someone explain to me exactly what it is and what it’s used for?
I’d love to use it if I understood it correctly.

THANK YOU!!

no one has any idea how this is supposed to be used?:

It looks like you can make extremely simple animations with it…
I’d love more info on it but I can find any anywhere. If anyone had any idea how I can find out more about this function please let me know.

Thanks!