Wall opening endcap styles are endcap conditions assigned to a wall end adjacent to a door, window, or door and window assembly. An opening endcap style has no independent geometry, but must use a wall endcap style as its geometry definition.
Note: When you change a wall endcap style, all opening endcap styles based on the wall endcap style are modified, too.
Like a wall endcap style, an opening endcap style must be assigned to a wall style.
- Verify that the wall endcap style you want to base your opening endcap style on is present in your drawing, and has the correct geometry.
- Click
. 
- Expand Architectural Objects.
- Expand Opening Endcap Styles, right-click, and click New.
- Click the Design Rules tab.
In an opening endcap style, you have to define the endcap condition between the wall and the opening separately for each direction: jamb start, jamb end, sill, and head.
- Under Endcap Style, select the wall endcap style for each opening direction.
- Click OK.