I cut a data-entry rule from a study object, but nothing happened

When you select Cut, the data-entry rule is not immediately deleted from its parent study object. The rule is only deleted when you paste it onto another study object. If you do not paste a cut rule, it remains associated with its original parent study object. This behavior is different from the cut and paste functionality that is used when you move a study object in the Project Explorer. In the Project Explorer, when you cut a study object, it is immediately deleted from its parent study object.