Maybe I missed something it mentioned specificallya bout opening doors to the nevernever elsewhere, but in game, the options seem to be limited to Thaumaurgy, World walker, and Swift Transition. Dresden's Aparturum spell seems to be more Evocation than Thaumaturgy, no ritual, no pomp, just stepping up to a point, "Aparutum" and Poof! there is a doorway to the nevernever.
Spirit Evocation Maneuver?