Mitti's Main Window is divided into three 3 parts:
Playlist & Transport
Located at the left side of Mitti's Main Window, you can find the Transport Controls, Main Timecode Field and the Video Output Indicator.
The stripped area is the Playlist: this is the place for your Cues.
Preview, Playhead & Waveform
Located at the right side of Mitti's Main Window, the Preview displays the current Cue at the current timeline location.
The Preview Window also displays the Cue Time Overlays, which you can configure in Preferences-Overlays and toggle on/off from the View menu.
The Playhead is below the Preview, it should the In/Out points of the Current Cue - at the bottom of the Playhead view, there is the Audio Waveform.
Cue Inspector
On the right side of the interface, there is the Cue Inspector, which shows the settings of the Selected Cue. In case there are multiple items selected, it shows only the options available for each of them - modifying settings affects all selected Cues this case of course.
+1 Bottom Bar
Located at the bottom of Mitti's Main Window, the Main Fader controls the overall opacity of the Playlist.
With the "Eye" icon on it's left side, you can trigger Auto Fading, which will fade-in or -out the Playlist during the Fade Time specified in Playlist settings. If you hold down the ALT key while clicking on this button, it will toggle the opacity on or off.
On the right side you can show or hide the Playlist & Transport or the Cue Inspector views.