TAdvAlertWindow vertical stacking

I would like to be able to stack the notifications.  I'm afraid the second+ one will be missed because you have to click a button to see it in the horizontal configuration.  Can I make it vertical?

Also, when the popup fades out it doesn't autodelete the message.  How can I tell when it is safe to delete it manually?

Did you set autodelete = true?

Yes, it deletes if I click the close button but not if it just fades out by itself.

We are looking into this.

OnHideMessage event is added in upcoming update to deal in such situation.