sliding glass door handle with double lock?

A handy person from Tampa, FL says:
We have PGT sliding glass doors that we'd like to be able to lock with a key on both the inside and outside. These doors are never used and don't want to take any chances with our little one getting outside where there is a pool. We have a normal swing door right next to the sliders, so no worries about being able to exit in the event of a fire.

Is this possible with any of your handle sets and my PGT sliders? Possibly buying two handle sets and only using the outside portion for my inside and outside pieces?

Thanks!
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Casey from SWISCO responded:

Hello,

Unfortunately, we do not sell handle sets with inside key locks due to liability and safety concerns. I have related some potential replacement hardware should you ever need it but, unfortunately, we won't be able to help with the alterations you're attempting to make. 

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