Covers and folders (question will be like scenario base. like I have one object A in it 10 test case objects .. if 10 test case are passed ..A should close how can I achieve this functionality)

A should be cover and others should be covered. Covers and folders are two built-in facilities that allow your application to support collections of work objects. In contrast to covers:
=> One work object may be associated with multiple folders, but only with one cover.
=> Members of a folder can belong to different work types, which need not belong all in a single work pool.
=> The relationships between folder work objects and their contents may be many-to-many.
A cover is a work object that is an instance of a concrete class derived from the Work-Cover- abstract class.
locking a covered work object also locks the cover work object a cover work object occupies a clipboard page named pyCoverPage
The standard ticket rule Work-Cover-.AllCoveredResolved alerts a cover flow that all the member work objects are resolved
The standard list view rule Work-.WorkInACover.ALL displays the urgency (pyUrgencyWork property), work object ID (pyID), subject (pyLabel), and status (pyStatusWork) fields as columns, without sorting.
Work-.AddCoveredWork, Work-.AddCovered, and others support operations with covers.
=> Flow actions — the standard local flow actions Work-.AddToCover, Work-.AddCovered, and Work-.RemoveFromCover allow user management of cover contents.