Unable to return form Briefcase zimbra file download

[Uula]

Not sure if I described the problem correct, but this is what happens and I really can't find a way to get back.

I start Zimbra desktop and everything goes well. I have a connection to my server and all.

Then I go to briefcase and select a document there and press download.

Desktop client opens the document in full window and I really can't find a way to get back from the view unless I restart Zimbra Desktop client.

Tried shortcuts, function keys and search the net for about 4 hours now. I'm sure, it's something really easy and I just haven't found the answer, but still.

How can I get back to my default view (or briefcase view)?