There may be instances where an infill, frame, or mullion requires a custom two-dimensional (2D) or three-dimensional (3D) graphic. For example, you might need a highly detailed 3D truss as the mullions or a decorative light fixture applied to an infill. In cases like these, you can create a custom block, add a display component with the block attached, and associate that component with an element definition. When you assign that definition to an element, the block is also displayed.
- Draw your custom component, and save it as a block.
- Click
. 
- Expand Architectural Objects, and expand Curtain Wall Styles.
- Select the curtain wall style that you want to change.
- Click the Display Properties tab.
- Click
. - Click the Other tab.
- Click Add.
- Select Infill, Frame, or Mullion as the element type.
- Select the specific element from the list.
- Select Draw Custom Graphics.
- Specify the display of the element:
If you want to … Then … display the block instead of the associated curtain wall element select Replace Graphics. superimpose the block over the curtain wall element so that both are displayed clear Replace Graphics. - Click Select Block, and select the custom block that you created.
- Click OK.
- Specify further settings for the custom display block:
If you want to … Then … scale the block to fit a particular dimension select Width, Height, or Depth. To prevent the block from losing its proportions, select Lock XY Ratio. specify how the block is inserted into the grid in the X, Y, and Z directions specify an insertion point on the X, Y, and Z planes. mirror the block determine if it should mirror in the X, Y, or Z direction. offset the block from the grid specify the offset in the X, Y, or Z direction. - Click OK three times.