How do I set a Note 4 Edge to accept or reject a call, when the phone is on standy mode on the edge sceeen?

[AC Question]

how to set note4 edge to accept or reject call during phone is on standy mode on the edge sceeen

how to set note4 edge to accept or reject call during phone is on standby mode(screen off) on the edge screen . without opening the cover to who is calling? Please advice