Where is the Maintenance Schedule

Have I gone mad? I can't find where to schedule maintenance.
I'm on 6.0.4.0 and some of my movies aren't showing in Mezzmo. Has it been removed?

In Tools -> Maintain Library, at the bottom is the schedule setting.

Thank you very much, Orange.
But I'm not going mad ...
I have two PC's, both with Mezzmo on them.
One runs under Windows 7 whilst the other runs under Windows 10.
I went onto my Windows 7 machine and, bingo! You were correct.
But I remembered going there before I posted, so I went onto my Windows 10 machine, and, whilst the "Maintain Now" button shows, the "Schedule Maintenance" button with the required time don't!

I then went into Help > About to confirm that the versions were identical.
I noticed that on Win7 Mezzmo was registered to me, but on Win10 it wasn't.
So I registered on Win10, and the facility became available ...
Yippee!

Excellent - glad you're sorted Rog.