On the curriculum page, clicking on the "+ lab" button under a section of the course will create a new lab lesson in the section. Now clicking on the edit button will open a new modal for you to create a new I/O lab and linking it to the existing lesson. You can enter the title of the lab and click "Create I/O lab"

The new I/O Lab will now be available in the list of the labs that you've created on your account, now click on the "Link" button to link your I/O Lab with the lab lesson.

Clicking on the edit button will open up the edit mode of the I/O Lab, this will give you the complete functionality to setup and test your lab.

Here's how the edit mode will look like.

You can use the description area to setup the Instructors for the lab. Mention all the required details to complete the lab and click on `save changes` to update them.

You would see that a two new files have opened up on your right side of the screen as soon as you've select the verified solution.

Once you've selected the languages for the verfied solution, you should be able to see two files in the text editor on the right side of your screen.

Both of the files will be having the same name, but one file would be part of the solution folder like `solution/main.py`. This file would contain the verified solution for the challenges. Now it's time to write the solution for the challenge

If the test cases are simple to set up you can set them up normally by typing in the text area.