There have been several issues discovered when working with discovery and very dynamic date / agile prototyping. It is not possible (currently) to remove multiple documents, just 1 at a time. Often in the beginning of a project the data is ingested / removed or changed multiple times, which forces you to create new collections rather then just clear the index or remove a batch of documents. This should be enabled via a normal discovery query. All documents, that match this query, can be removed. As a result, the users have better possibilities to manage the collection, prototyping and data preparation can be done at higher speed and the overall performance can be improved.