Assembly Design > Using Assembly > Placing Components > Assembling Components to a Pattern > About Replacing Pattern Members by a Family Table Instance
  
About Replacing Pattern Members by a Family Table Instance
You can replace one instance of a Family Table with another in a pattern when you use a reference common to all Family Table members for the initial placement of the component. If any of the component’s instances do not contain all the placement references used by the pattern leader, the instances cannot be placed in the pattern, and the pattern fails. You must redefine the pattern leader placement references so that the references are common to all pattern instances, or make the necessary references available by editing the Family Table.
Individual members of a pattern can be replaced in a table pattern. Edit the pattern table file, specify a Family Table instance name, and then replace individual occurrences of the patterned component with members of its Family Table.