Please also take the parent work Begin of the insertionpackageEnd of the insertion Begin of the deletion package End of the deletion

Begin of the insertion##36382End of the insertion Begin of the deletion ##36382 End of the deletion

into account.

**Acceptance criteria**

* Multi select custom fields displayed and editable within the project settings
* Begin of the insertion~~MultiEnd of the insertion Begin of the deletion MultiEnd of the deletion select custom fields displayed and editable within the project details Begin of the insertionwidget~~ This is already working with #36511End of the insertion Begin of the deletion widgetEnd of the deletion

#### Out of scope

* Changing the whole form to angular/formly (see <mention class="mention" data-id="36512" data-type="work_package" data-text="#36512">#36512</mention> )
* Implementing the backend (see #36511)

#### Open

* Is all the information required for the buttons available via the API? If not, should it be added or should that part still be rendered via Rails?
* How to handle the identifier? Currently changing it opens a second form which warns about the consequences. We could leave it at that and also reuse the existing rails based form for it.