Activity Levelling Setup
Use the Activity Levelling Setup panel to set limits for activities. This is not a target based level, and will not optimise in the same manner as Resource Levelling. Instead, it will automatically adjust the Gantt chart to a given target by varying the start date of the activities, and not the rate.
Note: At least one period must be set up in order to set up levelling.
Instructions
In the Gantt Chart area, click on the bar that represents the activity that you want to split, then on the Home tab, in the Activities group, click Levelling Setup to display the Activity Levelling Setup panel.
Adding and Defining a New Activity Group
Click Add 
to add a new entry, or press the INSERT key on your keyboard.
Copying a Precedence Group
Select an entry and click Copy 
to create a copy of the selected entry or press Ctrl + C.
Removing a Precedence Group
Select an entry and click Remove 
to remove the selected entry or press Delete. The entry can only be removed if it is not being used in the project.
Moving a Precedence Group
Select an entry and click Plus 
or Minus 
to move the entry up or down levels or press Ctrl + Up arrow or Ctrl + Down arrow.
General
Name
Enter the name of the activity.
Description
Enter a description of the activity.
Setup target attribute
Set up the attributes of the activities, functions, and the levelling target.
Allow levelling to split activities?
This is used if levelling determines a higher priority activity is available, yet work has already begun on a lower priority activity. This function would create a split in the lower priority activity (if the remaining duration of the activity is greater or equal than the minimum split time) in order to work on the higher priority activity. If this checkbox is checked the user may also enter a minimum split time. If a higher priority job starts later than the minimum split time, then a given activity will split so that some work may get done before the higher priority job finishes.
Activity Priority
Type
Select the attribute type by which to prioritize activities from the list.
Ascending or Descending
Select Ascending or Descending to indicate whether the attributes should be sorted in ascending or descending order.
Add
Click Add to add the selected attribute to the list.
Up
Click the Up 
icon to move a selected entry up one row in the list.
Down
Click the Down 
icon to move a selected entry down one row in the list.
Attribute
Indicates the attribute name for the entry.
Mode
Indicates whether the selected attribute is sorted in ascending or descending order.
Remove
Click Remove to remove the entry from the list.
Period Selection
Leveling period
Select the reporting period to apply to the levelling.
Use targets per period
Displays the predecessor of the activity.
Start/Finish/Value
Target by individual period only if the options have varying targets.
