Railing issue making a Mesh Panel Railing need help

[billy007nh]

So I made a Railing panel that has a mesh or 3/16" woven metal mesh panels for balusters. The issue I'm having is I want that Panel Mesh to Flex between the posts and not have a Fixed width for the railing panels? I've tried Breaking pattern settings and Justify and Excess length fill setting and they all need family types that are the fixed panel.

Any help making this flex would be great.

Billy