Search all mails of sender

In the earlier k9 Mail version I was able to long press on a mail in the inbox and select all mails of this specific Sender. This was useful to clean out the mailbox. Is this feature coming back?

V. 5.730


I also miss this feature. It would be very helpful for tidying up email inboxes. When I copy the sender to the clipboard and paste it back in the search function, K-9 does not find the senders. The search function does not work reliably. It only works with pure e-mail addresses that have no names assigned to them.