Zooming has been enhanced to maintain plot zoom while the mouse moves over the entire document, not just the plot. Two new options have been added to the cursor plugin to further enhance zooming:
The fist plot demonstrates the default functionality where you can move the mouse off of the plot while zooming but the actual area zoomed will not extend beyond the axes.
The second plot sets constrainOutsideZoom to false, so zooming will not only function when the mouse is outside of the plot, but the zoom range will be extended to the mouse position outside of the grid.
The third plot is like the third, but showTooltipOutsideZoom is true and the tooltip is set to follow the mouse, so you have an idea of what your range is while zooming.