I assume this is an assignment from a course you're doing?

Please explain which step you're having trouble with and someone will be able to help you. 

Yes, right.  I need steps to complete this task

So you want to know how to change the default sprint duration and how to create a new Agile group?

I don't know what course you're doing but surely those were two key concepts that would have been explained?

And the exercise is an opportunity to put your learning into practice. 

There's nothing wrong with asking questions if you're stuck. But I don't see the point of asking the Community to simply complete your assignment for you.

Let us know exactly where you're stuck, so we can help you, and that way it becomes a learning exercise.

Just my opinion.

This is a micro certification so there are no helpful hints or lessons.

I am also taking the Agile Development 2.0 Simulator Micro Certification course and am having the same issue.  I am not seeing any training materials to reference at all.  If I find anything, I'll let you know, yet wanted to share that you are not alone.  😔