Hello,
I just want to add another horizontal support behind the first layer of support and need only the top piece not the bottom piece. Is there a way to choose this option?
@MetDesignLab this option is not available with the current parameters. You can always explode the curtain wall and delete the bottom support, but of course you will loose the parametric features of the curtain wall.
If this curtain wall is flat (I mean, not from a curved path), you can also use a Window object instead, and create it from a Grasshopper style, so you can define all parameters you need in the Grasshopper definition.