If you want to edit or extend the image used in an Annotation you can use the Sticker Designer to do so.
You can lift multiple selected annotations simultaneously into the Designer interface by selecting the Image Nodes and starting the Designer via the Right Mouse Click / Annotations Menu or the CTRL+SPACE Node Context Menu
You can use the sticker designer to create and edit custom nodegraph stickers. For example to embed reference via copy+paste into your nodegraph
