How to replace the plastic trunk "handle" that houses the rear hatch opener?

Can someone with a factory repair manual explain how I go about changing the rear plastic piece that houses the rear trunk opener? Not sure the name of it? It's the wide plastic piece affixed to the rear hatch...it has the toyota symbol on it. My girl broke it....one of the internal plastic mounting brackets broke. I'm figuring that I have to go in from inside the car, but I was hoping I could get a rundown on the procedure before attempting it. I drilled a hole and put a sheet metal screw thru it into the metal of the rear hatch so its now hanging there and flopping around. Thanks in advance folks.