backbone insert at position and shift models

Question

Is there a simple way to insert models at a position of a collection and shift all models including the one at the specified index back, so basically 'slipping' a model into a collection at a position?

Answer 1

Inserting into collection at the specified index could be performed with the method .add() with passing option {at: index}:

myCollection.add(myModel, {at: 14});

Also for the second part of your question there are corresponding methods such as .slice().

I bet you could find the most appropriate one in the documentation.