Bathroom light, heater, exhaust fan switch

I am replacing a bathroom light, heater, and exhaust fan switch. It is a 3 way switch. The wiring on the old switch has 3 black wires attached to a white wire that is capped. Then the 3 black wires are wired on the left. On the right it has a black wire on top, a white wire in center and a black wire in the bottom. The ground wires are twisted together and hanging inside the switch box.

My new 3 way switch is a Triple Single Pole Switch. The left side of the switch has 3 gold screws and a green screw. On the right side there is one gold screw.

I need to know how to wire the new Triple Single Pole Switch using the existing wires as described in the first paragraph.

I used to watch Bob Vila on TV each week. I cannot find Bob Vila on any TV channels, lately.