With Client-v7 there was an option to view (rather than open) an email
if right clicking on a mail in the mailbox. This kind of view opened the
Email in antoher view than the open function.

This menu has gon in Client V8.

Is there a way to get it back?

We do need this view for running a formativ applet, that works only in
this view form because of problems with the Novell Groupwise API.