Create New Permission Level in SharePoint 2013

• Open your SharePoint Online Site Gear then select Click Site Settings > Site Permissions > Permission Levels.
  
  
• Click on the Add a Permission Level item-->Enter a name for the permission level and customize the permission items.
  
  
• Then Select the Checkbox for which permission do you need to assign the group.
  
  
• Click the Submit button to create the permission level. You will see the new permission level in the returning page.

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