The tool supports the following licences, as well as all ported licences with a warning (T109569):

CC 0
CC-BY 2.0 DE
CC-BY 3.0 DE
CC-BY 3.0 Unported
CC-BY 4.0 International
CC-BY-SA 2.0 DE
CC-BY-SA 3.0 DE
CC-BY-SA 3.0 Unported
CC-BY-SA 4.0 International
CC BY 1.0 (generic)
CC BY 2.0 (generic)
CC BY 2.5 (generic)
CC BY-SA 2.0 (generic)
CC BY-SA 2.5 (generic)

New dialogue logic ("dialogue start"): https://docs.google.com/document/d/1SGu3kY0IRY0pvMxcGlXrpHJQNnThsApWGNzAVDX1eEY/edit#heading=h.gkdjw4r8octj