Track & Baseline Structure with Incremental Change
Tracking & Managing with Incremental Change
Create & Set Active Incremental Change
Click the Create Incremental Change button 
on the incremental change toolbar to create an incremental change. Effectivity data will not be set without releasing incremental change (manually or through release status defined in preference)
Click on Incremental Change Edit context button 
on the incremental change toolbar to set active incremental change. All the edits will be made in context of this active incremental change. ...
