Looking for a keyed entry for my sliding door

A quick learner says:

I am a new homeowner and this is the door handle for my slider. I don't know the manufacturer but it does look similar to yours. I would like to make this a keyed entry. the screw holes are about 4 and 15/16 inches. Can you help me?

Thank you for your time.

User submitted photos of patio door handles.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Craig. Take a look at our 82-009A and see if this can work for you as a replacement.
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