**As** an administrator
**I want to** activate and deactivate a custom field, type or storage providers in the administration
**so that** I don't have to go to the project settings of each project to activate and deactivate them separately.

**Acceptance criteria**

* There is a new tab "Projects" in the following views:
* Administration -> Project Begin of the insertionattributesEnd of the insertion Begin of the deletion AttributesEnd of the deletion -> _<Project attribute A>_
* Administration -> Custom fields -> Work packages -> _<Custom field A>_
* Administration -> Work packages -> Type -> _<Type A>_
* Administration Begin of the insertion_\->_End of the insertion Begin of the deletion _->_End of the deletion Storages Begin of the insertion_\->End of the insertion Begin of the deletion _->End of the deletion <Storages A>_
* In the tab "Projects" all projects are listed where the custom field/project Begin of the insertionattribute/type/storageEnd of the insertion Begin of the deletion attributeEnd of the deletion is activated.
* Begin of the deletion The list is similar to the existing project list.
* Parent projects which are not active are not shown. This is the similar approach like we do in the project list when a user is not allowed to see all projects.
* End of the deletion For each Begin of the deletion activeEnd of the deletion project there is an action which allows to deactivate the Begin of the insertionproject.End of the insertion Begin of the deletion project, e.g. a button or a checkbox - whatever is easy to implement and complies with Primer.End of the deletion
* Begin of the insertionThe projectEnd of the insertion Begin of the deletion Above theEnd of the deletion list Begin of the insertioncan be filtered:End of the insertion Begin of the deletion there is a button "select projects".
* It opens a menu similar to the "include projects".End of the deletion
* Begin of the deletion Filter:End of the deletion All projects Begin of the deletion | Only selectedEnd of the deletion
* Begin of the insertionOnly selected
End of the insertion Begin of the deletion Primary button: Apply
End of the deletion * Begin of the insertionThere is a bulkEnd of the insertion Begin of the deletion Secondary button: Clear selection
* Checkbox: Include all sub projects
* BulkEnd of the deletion action: "Select all" and "Unselect Begin of the insertionall" 

**Open**

* Do we use the existing modal that we use to "include projects" (Angular) or will we reuse the existing project list (Rails)?End of the insertion Begin of the deletion all" (projects)End of the deletion