In the Administration module, go to User Management | Access Tokens.
From the Token scope field, select Group.
Select a group from the drop-down list in the Groups field.
You can also type the name of the group in the field to locate the group.
In the Service field, you can either select All, or clear the checkbox and select the services to add to the token from the drop-down list.
In the Expiration time field, set the expiration time for the token.
You can use one of the options in the field or set a custom expiration in hours.
Click Generate in order to generate the token.
The token window appears, which includes the scope, audience, expiration, token ID, and the actual token. Click Copy to copy the token.