Regardless whether you are using Kalium parent theme or child theme, demo content can be imported in both types.
After that either click Laborator > Demo Content Install from admin menu or Kalium > Demo Content
Then choose from any of demo content packages and click “Install Content Pack”:
A popup will appear for you to choose available content parts you want to import from that content package:
If everything goes fine, then you should see a happy smiley in the end of process and everything is set up properly:
However, not always things flow as we expect and boom… the unexpected happens and errors during demo content import appear on screen (there may be one or more errors, worst case is all at once):
In this case we suggest you to contact our support for more troubleshooting.