Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
You have to initiate a shading surface group first, and then move the object inside of it. You're looking for this button in the OpenStudio Tools toolbar: 
Click the button and set the axis somewhere (I would just set it at the origin). Select your object and cut, then double click into the shading surface group and paste in place.
You can vary opacity within the Shading:Building:Detailed object by varying the Transmittance Schedule parameter (details in the link).
| | 2 | No.2 Revision |
You have to initiate a shading surface group first, and then move the object inside of it. You're looking for this button in the OpenStudio Tools toolbar:
Click the button and set the axis somewhere (I would just set it at the origin). Select your object and cut, then double click into the shading surface group and paste in place.
You can vary opacity within the Shading:Building:Detailed object by varying the Transmittance Schedule parameter (details in the link).
One other thing you may run into is if your object is grouped. You may need to explode it before saving, as sometimes OS will not recognize grouped objects.
