Moving to new home , taking my ring, new home has ring

I will be currently moving into a new home and taking my system with me (keypad, motion detector, base, etc) w me. The home I’m moving into also has the ring and the seller is leaving it with the house. Is they’re a way to combine All the items to one account? To have a keypad at front and back door? All combined ? Simple task , difficult , or non existent? Any info helps thanks!