TSAC-630 In Generation of purlins (50), you can now set the Use extra purlin positioning option on the Parts tab to Yes to change the position and rotation of each even or odd purlin. Development area: Steel components Included in Fixed defects in version 2017i SP2 Quick feedback Did you find what you were looking for? * Yes Partly No What is missing? The feedback you give here is not visible to other users. We use your comments to improve our content. Need support? Fill in this form instead. Leave this field empty We use this to prevent automated spam submissions.