Keyed door lock for Philips PHP-07

A home owner from Essex, Vermont says:
I would like to add a keyed lock to a Philips PHP-07 sliding glass patio door as pictured. What part(s) to I need? Thanks!
User submitted photos of patio door hardware.
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Tom from SWISCO responded:
You could probably just add a key cylinder like our 82-310. Check it out and see what you think.
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