**As** an administrator
**I want to** change the parent of a hierarchical custom field item
**so that** I can rearrange existing items within a hierarchy

**Acceptance criteria**

* "Change parent" option is displayed in the menu of a hierarchical custom field item.

* When clicking on this menu option a dialog with the title "Change parent" and the current hierarchy tree is shown

* The admin can select a new parent and save the selection.

* Begin of the insertionThe admin can search in the hierarchy.

* End of the insertion After saving the new parent, the hierarchy is Begin of the insertionupdated.End of the insertion Begin of the deletion updatedEnd of the deletion