Trying to complete Hands-On Training - Create a Permission Set for Access to Positions

Hello,     Trying to complete the following Hands-On Training.  Where do I go to set the last line below, I am not finding it.  What am I missing?  I need help on this line below please.    "Enable Positions Object Permissions: Read, Create, and Edit"    For our Recruiting app, create a permission set that grants access to the positions object. Then, add this permission set to the Recruiters permission set group that you created in the unit.    Need Help?

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Pre-Work  If you haven’t already created the Recruiters permission set group described in this unit, do that now. Otherwise, you won't be able to complete this challenge.

• Create a permission set:
  • Label: Manage Positions
  • API Name: Manage_Positions
  • Add a description (We won’t check for this.)
  • License: -None-
  • Enable Positions Object Permissions: Read, Create, and Edit (I Need Help here)
• Add the permission set to the Recruiters permission set group
• Verify that the Manage Positions permission set and Recruiters permission set group are displayed in the Object Access Summary for the Position object (We won’t check for this.)