In iTunes 12, I can't edit track numbers for podcasts.
I use the "track number" field to sort the episodes of my subscribed podcasts. Up until iTunes 11, this field was editable in the "Get info" pop-up of the episode. However, in iTunes 12 (Windows), this field is not available if the original audio file of the episode has an empty track number. It also cannot be accessed vie the "Add Field" drop-down, as the only available field in that list is "Comment". Does anyone know of a way how to re-enable the track# field by default, or at least have it show up on the "Add Field" list?