Time compress animation sequence

[brockgs]

Part of my animation sequence is moving to slow and I'd like to time compress it by about half. However there are dozens of keyframes affected. Is it possible to time compress/expand a section of an animated sequence without having to go and tweak all keyframes? I've been scouring through the timeline but can't figure out if this is possible.

[John Bigboote]

Should be just a matter of 'highlighting' them (the keyframes)and then you will see a black box with little tabs on the ends, grab a tab and adjust...