Disable keyframe for certain channels of a bone

[peng]

If I only want the bone to rotate and not expecting it to move or scale. Is there a way to disable the keyframe for the scale and translation of the bone? that will greatly declutter my timeline.

[Panha]

I am looking for this kind of action too. Sometimes we only want to rotate, not the scale and position. However, if we shy that bone, all the three channels, rotation position and scale, will be hidden too. Wish someone could have a good solution for this.