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The annotation column shows the actual message for the location, this can be empty but that would only make sense if there would be extra properties defined with it that contain useful information like "Categorie" and or "Sub-Categorie"
Creating new annotation
When pressing the "create" button on the bottom a popup screen will show from which the user can input the desired information for creating a new annotation:
Edit, copy and delete
When the "edit" / "pencil" button is pressed for an annotation the same Annotation editor popup will show with the values for the existing annotation already filled in.
When the "copy" / "double document" button is pressed, the annotation is duplicated, this can be useful if a new annotation needs to be created that is very similar to an already existing one. After the copy button the edit butten can then be used.
When the "delete" / "cross" button is pressed the selected annotation will be deleted immediatly.