Setting Keyframes (Move, Rotate and Scale)
Maya 2012 Tutorial
How to Set Move, Rotate and Scale Keyframes in Maya
Most object parameters in Maya can be animated. Keyframing move, rotate and scale is slightly different than setting a keyframe for an object's color or transparency. For information on setting keyframes for other parameters, see topic Setting Keyframes (Object Parameters).
Add a cube to the workspace (Create > Polygon Primitive > Cube).
With the timeline set to frame one, select the object and press the s key. This sets a keyframe for the object's current location, rotation, scale and visibility at frame one. You can also set a keyframe by choosing Set Key from the Animate menu in the Animation menu set.
Move the timeline to frame 24. Open the Channel Box and enter new values for translate, rotate and scale. Once you have entered the new values, press Enter + Esc + s key (to set the new key). Each time a keyframe is added to an object, a red line appears in the timeline.
Reset the animation to frame one and play the animation. Keyframes tell Maya the object information at specific frames. The in-between frames are calculated and rendered automatically.
Changing Multiple Input Boxes at Once
To change multiple input boxes in the Channel Editor at the same time, shift select the additional boxes (i.e., all three scale boxes). As you enter info in one box, the others are updated.
Using this method of setting keys will create numerous static (unused) channels. To set exclusive keys for translate, rotate or scale, press Shift/w (move), Shift/e (rotate) or Shift/r (scale).