Hi Lin,
To get the 360 panoramic for the Cardboard viewers you just need to generate a 360 in version 11.4 and open the link created by the panoramic creator on your phone. In the 360 view that opens on the phone, down at the bottom, you will see an icon that looks like the cardboard viewer. Tap that and the 360 should split into a “Stereoscopic” mode. Place the phone in the viewer and away you go.
Neil