I am not really sure what you mean, but you can however still make use of
the original Mail Merge Helper from the earlier versions.  To make it
available, select Customize from the Tools menu and then on the Commands tab
of the Customize dialog, select the All Commands category and scroll down
through the list of commands until you come to the Mail Merge Helper item.
Now left click on it and drag it onto a Toolbar or the extended Tools menu.