Hello - We bought a home and I believe the patio door is Anderson built. We are trying to change the handle mechanism so we can have keyed access from the patio door. The photos show a front view of the latch mechanism (and you can see the exterior black handle without a key cylinder) as well as the holes in the panel. The inner handle has an integrated turn key knob to activate the latch (no separate lock). My thought was to take the exterior handle off and replace it with the part below:
Would this work?
I planned to use the existing latch since it seems similar to:
The existing assembly already has the tailpiece but it attaches to the inner handle turn knob.
Thank you.