Editors needs to be able to set section and state before publishing object, this was removed in 5.0 as it also enabled people to change section and state after object is published, which is logically wrong as it affects the object directly even if draft is discarded, in the case of section it also affects all children objects.

ref: http://share.ez.no/forums/ez-publish-5-platform/is-choose-section-lost-in-ezpublish-5