You can delete one or more
            keyframes from an animation curve or track. You can also delete
            keyframes from more than one channel. 
         
         To delete a keyframe:
         
         
            - Access the Animation Curve view or the
               Track Editor.
            
- Select the channel containing the keyframe
               you want to delete.
            
- From the Edit Mode box, select Delete
               (or press D).
            
- Click the keyframe.
               The keyframe is removed
                  from the curve or track. In the Animation Curve window, the shape
                  of the animation curve is updated automatically.
                
To delete all keyframes at a specific
            time:
         
         
            - Access the Animation Curve window or
               the Track Editor.
            
- Drag the positioner to the frame where
               you want to remove keyframes.
            
- Select the channels containing the keyframes
               you want to delete.
            
- Click Del Key.
               The keyframes for the
                  selected channels are deleted for the current frame.
                
To delete a range of keyframes:
         
         
            - Access the Animation Curve window or
               the Track Editor.
            
- Select the channels containing the keyframes
               you want to delete.
            
- From the Edit Mode box, select Delete
               (or press D).
            
- Drag a selection box around the keyframes.
               When you release the
                  cursor, all keyframes inside the selection box for the selected
                  channels are deleted. Animation curves are updated automatically.
                  Unselected keyframes and keyframes in collapsed folders are unaffected.
                
To delete all keyframes except the current
            keyframe:
         
         
            - Access the Animation Curve window or
               the Track Editor.
            
- Select the channel containing the keyframes
               you want to delete.
            
- Press Ctrl and
               select the keyframe you want to keep.
            
- Click the Keep button.
               The selected keyframe
                  is kept, while all other keyframes are deleted.
                NoteIf no keyframes are
                     selected in the currently selected channel, the entire channel is deleted.