What is your Pocket Sliding Door Connection?
Is it something you can finish to with your stucco, stone or wood? How are you finishing inside the pocket?
Every product is different and you need to understand which detail is being used. Simple "L" bracket attachments like this cannot be covered up because it will have to be removed if the door ever has to be serviced.
Consult an expert free from dealer and manufacturer biases. I can advise on best practices based on doing hundreds of complex pocket doors with a dozen manufacturers.