Robio, thanks for mentioning Favorites Section. I created a new post as it’s worth not burying it in this current thread, new post: https://forum.emclient.com/t/search-folders-in-em-client-similar-to-postbox-focus-pane/102101 and em client’s Search Folders seem to provide a similar function as the Favorites pane in Postbox.
The only thing is I don’t like the list of Accounts showing all the time in em client, but to see the Search Folders, I need to keep the account list expanded.