what is that Unknown button in graph editor
Hi,
I have two questions-
1- Today I discover an unknown button( seems like an anchor point) in graph editor. I dnt understand what is that and it's purpose. Please tell me what is it if you know.
2- What actually happens when I move a bazier handle up and down in graph editor. does it have any impact if I move it up and down?
if yes,
what impact is that?
Thank you.

