Administration Guide : Customizing Templates for Individual Users or Groups — the Permission Sets subtab : Editing permission sets

Editing permission sets
You may want to edit previously established permission sets. To do so:
1.
Click on the Edit Permission Set link.
 
2.
Use the For Template pop-up list to establish the template whose permission set you want to revise.
3.
Use the Permission Set pop-up list to establish the particular set you intend to edit. All previously-established sets for the selected template will appear in the list.
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