csv import for dialog cards or flash cards

I saw that csv import for dialog cards was programmed a while ago, but I cannot find any settings that would allow me to do that. It is also not mentioned in the tutorial. What do I have to do to get this working?

see here: https://github.com/sr258/h5p-cli-creator/commit/b63a3b182075de17874ca1f0...

[EDIT: never mind, I figured out that you have to use the command line, you can delete the post if you want]