Bug 119216 Regression: Group can't be added in layout editor.
Description: Group can't be added in layout editor. Steps to reproduce: 1. Add a table. 2. Right click on the table and find that "insert group" is grayed out.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/actions/InsertGroupActionFactory.java
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