ODS Graphics Editor is really meant for use for editing of graphs from stat procedures, where you do not have access to the code that made the graph. When you are using SGPLOT, you can easily change the code yourself, which is better than using Editor.
This is true, except for the free form annotation. In your case using University Edition, you can add the annotation using the SGANNOTATE feature. See SGF 2016 paper. Or, you can use any image editor like Microsoft Publisher to add hard coded annotations after the fact.
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