I have a few questions that I could use some help with:

     1) This note exists on a FLEX fab drawing: "During plating of vias all
     areas shall be masked with plating resist except those pads indicated
     as pads common."  Does it refer to selective plating?  Can anyone
     please explain this and why a design would need this type of process?

     2) On this same fab drawing "bend seam lines" are called out on areas
     over traces.  Can't this break the traces-especially if the selective
     type plating is used (doesn't this process make the flex more
     brittle)? If bends are required in a flex, what options am I to look
     for?

     Thank you.

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