Add Graph as Sheet (ORG-8797)
Right click sheet tab and choose Add Graph as Sheet... from the context menu. Creates a new sheet and adds one graph to a single worksheet cell.
Double click on the embedded graph to open an editable graph window. Note that th editable graph window has an arrow-like button in the upper right corner (in place of the usual Windows "delete" button). To exit the editable window and preserve customizations, click this arrow button. This closes the editable window and pushes updates back to the embedded graph.
Right click and choose Restore Window to delete the embedded graph and break the link to the original graph window.