I had ticked the chec box for Object Maintenence in SPRO under Set Up Cntrol Data for ECM.
In a change master which is released, we have objects - Material, mat BOM and Documents.
When I access through SAP GUI. I go to cc03, give change number and enter. When I click on Material, Mat BOM or Document, all are opening in Change Mode..
In PLM WUI, when I go to Display Change Master mode, and double click on Material , it is opening only in Display mode and no "Edit" option is there. For Material BOM and Document through opening in Display Mode, there is EDIT option also..