Carbonio web interface browser notifications

Hi, fairly new user here but long time zimbra user (migrated from zimbra).

I noticed the web interface doesn't indicate new mail has arrived on it's tab. Is that a feature that might be in the works? I know gmail and zimbra would indicate something on it's tab (maybe it's changing the favicon?) showing new mail has arrived.

Also, I don't seem to be getting new mail anyway until I click the "Inbox" on the left. Then new mail shows up. I just changed my account from 5 minutes to "as new mail arrives" to see if that helps with showing new mail on the UI.

Thanks for any info!

Dennis