post https://example.com/api/v1/engineering/design_elements_work_items/batch_delete/
something like that should return the list of design elements
that should include category_name and feature and region_name for each design element
and materials
and status
then when you select one, we need to be able to get the work items
associated with that design element
...
if work items were in a separate call it would be
https://api.client_name.vitruvi.cc/api/v1/engineering/elements/{pk}/
and that should get the work items