Adding a keyed lock to the outside of a RH Sliding door

A quick learner from Elmsford, NY says:
Can I install a keyed lock into the outside panel of a door that has no latch of any kind on the outside?
User submitted a photo of patio door hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Thank you for your patience in this matter. Your mortise latch looks like our 82-037. What you need to do is to determine whether this is the left or right hand door. This is determined by looking in from the outside. That said, look at our 82-316 and 82-317 key cylinders and see if these can work. If you need thumb turn as well look at our 82-043.
A quick learner from Elmsford, NY says:
The 82-317 we ordered works perfectly, thanks for your help.
However, I have been to a few local hardware stores and no one seems to be have the correct key blank to make extra keys. Is this an Andersen part only?
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Tom from SWISCO responded:
Great! Glad to hear it worked. Yes, this part is specifically for Andersen doors. You should contact an Andersen dealer if you want to make extra keys.
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