Can lookAt look at an arbitrary volume?

[azaroth42]

e.g. create a cube around something (a bounding box) and then have the camera lookAt that volume such that it's all within the viewport

Can look at a group (e.g. embedded scene) with multiple objects, but not at a volume around a part of a model.

[vincentmarchetti]

A cubic -- or bounding box -- "Selector" is probably useful for some things, but I think it's only a partial solution to the lookAt question. I can't think of many presentations where a content developer would want to look at a volume from just any randomly selected direction. I propose that the 'lookAt' target which fits a lot of uses but is not overspecified, is a selector which describes a positioned and oriented rectangle in the model space. That rectangle would not be rendered but as the target of an annotation, whose body is a Camera, the Camera could be specified to look face-on at the rectangle, with the rectangle filling the viewport. Whatever interesting part of the model which is coincident with the (invisible) rectangle would be in the camera view.