Add ability to change the "look at" point in 3d plots, or alter the default to use the center of the plot
Currently the view is aimed at the center X and Y, but min Z.
With deep 3d scatter plots, this leads to parts of the scatterplot being invisible at certain rotations (eg. after rotating 90 deg, half of the view is empty, other half contains points).
As an alternative, I would suggest changing the default for 3d scatterplots to take z depth into account (aim at center Z).