Use the Assign Predecessors dialog box to define a predecessor for an activity. To display this dialog box, click Assign in the Predecessors tab of Activity Details or click 
on the Assign toolbar. You can also click Assign in the Predecessors area of the Relationships tab in Activity Details.
Display Options bar: Click to change the activities display and to select another project when you want to assign external relationships to an activity. You can customize columns, filters, grouping and sorting, font, and colors.
Search: Type an activity ID or name to display a filtered list of activities whose ID or name begins with this value.
Activity ID: Displays activities in the open project.
Activity Name: Displays the names of the activities in the open project.
Activity Status: Displays the status of the activities in the open project.
Assign: Assigns the selected predecessor activity.
Remove: Removes the selected predecessor activity.
Tip
- To sort the display, click a column label.
Note
- To display the Relationships tab in Activity Details, click the Layout Options bar, then choose Bottom Layout Options and add the Relationships tab to the Display Tabs column list.