Ableton Live:Freeze tracks

To freeze a track in Ableton Live simply right click the track header (where the name of the track is) in either the session or arrange views. Choose Freeze from the pop up menu that appears.To unfreeze a track repeat this proceedure on the same track but choose Unfreeze from the pop up menu.

Once you feeeze a track you won't be able to edit it's effects but you can still move the audio (or MIDI) around. If you would like to permanently "freeze" the track simpley right click the track header of a frozen track and choose Flatten