show new email

When I collapse all my folders I expect to be alerted to new emails
arriving in any of my sub-folders. For example, if any new emaiIs arrive in inbox folder, I expect to see the number of email in bold, appear in the side of email title.

Unfortunately eM Client does not include a combined unread count on the top level folder. There is, however, a smart folder called Unread, where you can immediately see all unread messages.