Dropmap
How to create a dropzone?
By pressing the "Add dropzone" button, you will be able to create a dropzone by clicking on the map to put points on it. Clicking on the first point will validate your dropzone.
How to remove the last point during creation?
By pressing the "Remove last point" button, the last point you set will be deleted and you can set another one.
How to delete a dropzone?
By pressing the "Delete dropzone" button, your dropzone will be deleted and no longer displayed to everyone.