Question: When using the crossfade editor what does the fade offset do excactly? What are the differences in the settings? Is this a way to expand the crossfade to the left by clicking something and dragging? Answer: That's what the offset is for (amongst other things). In this case, set offset to 100, or simply click 'Fade outside object borders'. The xfade will now expand to the left only when dragging the upper fade handle in the object. Very handy when you know where the xfade should stop, and just want to adjust the fade length. Offest vaue 0: Xfades expands/contract to the right.