“I’m specifically looking to target the index, just like the first example – if it’s possible.”
No, it isn’t possible.
The closest you can get is to get an Array of the object’s keys, and use that:
var keys = Object.keys( obj );
…but there’s no guarantee that the keys will be returned in the order you defined. So it could end up looking like:
keys[ 0 ]; // 'evenmore'
keys[ 1 ]; // 'something'