How you can enter the Sift.

I feel the way you should enter the new Sift dimension should be quite like the way you would do it in Dungeons II in the Ancient City although I feel that the unique note blocks you use to start the portal activation should be able to be crafted so that players who have cleared out Ancient Cities and/or have renovated them can have a portal. I feel that the event would only start if the following criteria: The portal structure and the special note blocks. So they could not be opened any where other than the Ancient Cities. I also feel that you should be able to take mounts and other animals on leads through easily.