Compact view
From User Manual :: Screenbits
As an alternative to the default user-interface, you can switch to Compact view to use the app by a small user interface.
To switch to compact view, click Compact view button on the top-right side of the application window, next to the minimize/maximize button.
Figure 1: Switch to Compact view
Once you switch to compact view, a minimal user-interface replaces the default user-interface. For Screen, Device and Audio capture modes, this user-interface appears on top of the screen by default while you can move it to anywhere on the screen.
Figure 2: Compact view
For Area capture mode, it appears on one side of the selected area while a frame is displayed around the selected area.
Figure 3: Compact view (Area capture mode)