Copy Paste Keyframes
Maya 2012 Tutorial
How to Copy Paste Keyframes on the Maya Timeline
Copying and pasting keyframes can be helpful while building your animations. By selecting a keyframe in the Timeline and copying a keyframe, you copy all of the keyed attributes at that time. If you select a new time and paste the keyframe, all the attributes are now pasted at the new time.
Add a sphere by choosing Create > Polygon Primitives > Sphere.
With the sphere selected, click frame one of the timeline and press Shift + w. This sets keys for translate x, y and z.
Click frame 24 of the timeline and move your object to a new location. Press Shift + w to set another keyframe.
Click frame 11, move your object and press Shift + w.
Right-click the keyframe at frame 11 and choose Copy by left clicking the word Copy.
Left click frame 13 to select frame 13, then right-click frame 13 and choose Paste > Paste by left clicking the word. The attributes from frame 11 are now copy / pasted to frame 13.
Play your animation and notice that the sphere pauses from frames 11 to 13.
To remove the keyframe at frame 13, right-click the frame and choose Cut or Delete by left clicking the word.