I know we definitely said to default to a camera based on data dims is not given, so FlyController for 3d and Panzoom for 2d

Controller_ID - defines controller for each subplot
number of elements must be <= number of elements in grid shape
elements in the same row belong to same controller
elements not listed are by default assigned a unique controller

Controller_type - defines type of controller for each subplot
defined upon initialization, must be same shape as grid_shape.
If not defined, default is 'panzoom' for '2d', and 'flycontroller' for '3d'
Cannot be 'partially' defined. Either define the entire array, or none.

This is what I recall

superseeded by #382