With new UI, search bar dissapeared and WMA was supposed to replace it. We can use it to search mailings, databases, but we can't use it to search for automated groups (names and ID). As we have plenty of these in our transact orgs, it was a great help to find exact group via search bar or name. As we are working more with Ids due to our structure, now we have to search for right group by entering each one and comparing the Id's.