I am replacing a switch with a slide dimmer control combination. They are both Leviton switches however the wiring is not the same on both switches. Each has 4 wires. The new replacement has 2 red a green and a black. The old one has 2 black a red and a green. The room lighting has 3 switches. The wiring to the old switch consist of the ground (bare wire) to the green switch wire, 2 black wires to the red wire, one black wire to a black wire,1 white wire to the black wire. How do I wire this arrangement to the new switch?