How to Apply a Sandbox Customization to Specific Roles or Users Instead of the Entire Application

Summary:
I’ve successfully created a sandbox and removed certain options from Quick Actions. Now, the goal is to restrict the customization—specifically, the removal of "Manage Journals" and "Create Journals" from the Quick Actions menu on the General Accounting dashboard—so that it applies only to selected roles or users, rather than globally across the application.

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