A word on terminology: pre-2013 we had Balusters. These appeared as a top level element under the Railings category in the Project Browser. In Edit Family mode, the Family Category and Parameters dialog did not tell you 'this is a Baluster'. You could look in the Properties Palette and it would say Family: Balusters. In Revit 2013, the above condition still exists for Balusters (backward compatibility). However, the new component Posts are termed "Supports" and Supports is a proper sub-category of Railings (properties in Family Editor shows Family: Supports). Confused yet? If you want to dig a little deeper, check out the diagram on this page.
Ok, back to unpinning the posts (supports)--
What you need:
- A 2013 Handrail Type with Supports set to Fixed Number
- A Supports family applied to the above type
- Draw the railing
- The fixed number of posts will be auto spaced along each segment of Railing
- Select each post, unpin it and then either Drag (with mouse) or Nudge (with arrow keys) into position.
I have created a Supports family which allows resizing at both top and bottom - so I can create new types for various situations, unpin and then swap.
For a crash course in Revit 2013 component railings, check out:
Revit 2013 railings - almost 7 months old, but have you used them?