You can assign additional identities to existing samples or remove them.
To assign another identity to a sample
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In the menu bar, click Attestation > Sample data. 
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On the Sample Data page, click the sample you want to edit. 
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In the Edit Sample pane, click Assign identities. 
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In the Select Identities pane, select the check box next to the identity you want to assign to the samples. 
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Click Assign. 
To remove an identity from a sample
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In the menu bar, click Attestation > Sample data. 
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On the Sample Data page, click the sample you want to edit. 
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In the Edit Sample pane, select the check box next to the identity you want to remove. 
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Click Remove identities. 
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In the Remove Identities dialog, confirm the prompt with Yes. 
