We have IGraphicsContainer on ArcObjects SDK and we use it for some temporary information storing. As I understand for the same purpose I could use map notes templates (for example Line note template). How can I add Line template layer to map I have some plans (using template id activate tool), but how to check which layer was added? By layer name or other properties? What will be if customer will change layer properties? I would like to add and delete features depending on my workflow.