Controls the Active Family and Active Part, including Compound Parts, as well as the symbology applied when geometry is placed.

• Ribbon: Building Design > [Discipline] > Common Tools > Toolbars > Family/Part
• Ribbon: Building Design > Drawing production > Common Tools > Toolbars > Family/Part
• Ribbon: Building Design > Data/Reporting > Common Tools > Toolbars > Family/Part
• Ribbon: Building Design > Modify > Common Tools > Toolbars > Family/Part
• Ribbon: Building Design > Analysis > Common Tools > Toolbars > Family/Part
• Ribbon: Modeling > Forms > Common Tools > Toolbars > Family/Part

Setting	Description
	Sets the family and part for material assignment by matching the family and part definition of a selected Building element. Select, then select an existing element containing the family and part definition you want to use. The Family and Part fields update to reflect the family and part used by the selected element.
Active Family	Sets the Active Family field, first field on the left. If there is no active family, the field is blank.
Active Part	Sets the Active Part field, second field on the left. If there is no active part, the field is blank.
	Opens the Family/Part Editor .
Compound	When on, the active part is specified as a compound part.
	Indicates there are no differences between the active part and the values set in the Level, Color, Style, and Weight fields to the right.
	Indicates there are differences between the active part and the values set in the Level, Color, Style, and Weight fields to the right.
Active Part settings	Set the part settings, on the right of the toolbox. Possible values are: Active: sets the level, color, style, or weight to the active value Part: sets the level, color, style, or weight to the default for that part or compound part. This is the default value. Level: sets the color, style, or weight to that for the active level. You must have already set up the values by level in the Level Manager.