@B.Will Quick clarification. Do i need to join those two black wires and combine them as one and then add it to my smart switch

@B.Will Thank you sir. I will try this today and update you

Hi - I am replacing my existing 3 way switch with HS210 and came across this issue. My old switch has 3 black wires on one side and one red, copper wire on the other side. As per the instructions...