Use this dialog box to refine the selection set of Autodesk InfraWorks 360 objects that will be brought into AutoCAD Civil 3D.
If the object settings file that you selected in the Open InfraWorks 360 Model dialog box does not enable certain object types to be brought into AutoCAD Civil 3D by default, then the check boxes for those object types are cleared in the Refine Selection Set dialog box but can be selected if the InfraWorks 360 model contains those object types.
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Expand All
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Expands all items in the tree.
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Collapse All
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Collapses all items in the tree.
Check All-
Selects all the items in the tree that can be selected.
Uncheck All-
Clears all the check boxes that can be cleared.
- Data Tree
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Lists the InfraWorks 360 data that is available to bring into the AutoCAD Civil 3D drawing. Expand each of the collections to display all of the subcomponents.
Select or clear the check box to the left of each object type or object name to filter the data.
Note: The check boxes for a collection have a tri-state display. If only some items are selected under a collection, the check box is filled
. If all the items are selected, the check box is selected 
. If all the items below the collection are cleared, the check box for the collection is cleared 
.