I found the files in the settings, and i can select the folders , but it wont let me delete them
OK i found out you can delete them using the Files app. I'm not sure why you cant delete them in the Nano file manager though
The reasoning behind it is that if you delete a user kit that has been used in a project, it will also disappear from the project. I think there's a more elegant way to handle this and Matt is aware of the issue, but Files app is what we have at the moment.