Hi,
The embedded graph in report still is a real Origin Graph, you can double click to open it and change settings on graph, close it, the changes will be applied back to report graph.
In Origin C programming, still can attach GraphPage object to a report graph by page name, for example:
// before embed
GraphPage gp;
gp.Create();
gp.Rename("Sample1"); // set name as Sample1
// ....codes to generate report with graph
// access graphs in report
GraphPage gpReport("Sample1");
Iris