If
         you   -click
         anywhere in the Time Slider, a menu is displayed for animation control
         operations. These operations work on keys of the currently selected
         objects.
 -click
         anywhere in the Time Slider, a menu is displayed for animation control
         operations. These operations work on keys of the currently selected
         objects.
      
Cut, Copy, and Delete affect the keys at the current time or in the selected ranges. Cut and Copy place the selected keys on an internal clipboard for pasting, and Delete removes the selected keys from the timeline. Copy, Cut, and Delete also operate on integer time ranges. For example, if your current time is 5, these items act on the range of 5 up to 6, but not including any keys at time 6.
Paste puts any copied or cut keys from the clipboard at the current time. Paste > Paste Connect pastes copied keys the same as if you select Edit > Keys > Paste with the Connect option turned on.
There are two ways to paste keys into the Time Slider:
 -click
               the Time Slider to select a time range. The keys will be scaled
               to fit that range. Existing keys in the selected area are removed.
 -click
               the Time Slider to select a time range. The keys will be scaled
               to fit that range. Existing keys in the selected area are removed.
            The Tangents item will set the tangent of the keys at the current time, or all the keys in a selected time range.
To select playback looping
            options,   -click
            the Time Slider and select Playback
               Looping > Once, Oscillate,
            or Continuous. These are the same
            options as those in the Preferences window.
 -click
            the Time Slider and select Playback
               Looping > Once, Oscillate,
            or Continuous. These are the same
            options as those in the Preferences window.
         
Selecting this opens the Playblast window.
            Selecting the option box (  ) opens the Playblast
               options window.
 ) opens the Playblast
               options window.