Configuration entry
What defines a configuration entry?
A configuration entry can be one of multiple types. You can choose out of one of four possible geometries and one of three possible form-elements for your classification questions. They are described on the page about entry types.
Geometries can be nested one level deep and only as child of another geometry. Classifications may be nested up to three levels deep and as wide as you choose. They can be attached to a geometry or set up as global classifications attached to the image.