Removing keyframes

Is there an easy way to clear keyframes, for example would it be possible to select a frame in a parent peg, and remove all keyframes on the frame on all the sub-elements?

Also, when i simply select “remove keyframe” on a keyframe, nothing happens. I have to delete the whole frame and make a new one, which gets annoying.

Thanks for any help

Move your time-slider over the appropriate key-frame -
select the “Transform” tool and collapse your peg -
right click the key-frame and choose “Remove Keyframe”.
That should remove all keyframes.

Or select “Rotate, Scale or Motion” depending of what kind of key-frame
you would like to delete and right-click the key-frame and choose “Remove Keyframe”.