A command that gives the bones and their hierarchy would be useful for understanding which selections are animated and which ones are not.

getObjectBones _obj

returns an array of ["bone", "parent"] pairs:

[
   ["bone1", "parent1"], 
   ["bone2", "parent2"], 
   ...
]

or alternatively, similar to model.cfg:

[
   "bone1", "parent1", 
   "bone2", "parent2", 
   ...
]