title: How to hide sections of page layout based off Owner
body: <p>I'm new to Salesforce and I was looking into making a page layout for Leads/Contacts/Accounts to have special owner visibility.</p>
  
  <p>I have the detail page looking as needed using Standard Salesforce page layouts, but am wondering how can I show or hide a section of the layout based on whether the viewing User is the Owner of the record. </p>
  
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  <p><strong>Desired Scenario</strong>:</p>
  
  <p>Record R is owned by User A. Detail Page for Record R is a Standard Salesforce Page Layout with 2 sections: one section containing Contact info (that ONLY User A, the owner, can see), and one section containing additional info (that ALL users can see).</p>
  
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  <p>I have reviewed the documentation and from what I can see the only way is to either build a custom controller or extension. Is this the only way and if so, does anyone have a good walkthrough in changing only a section of a page layout rather than creating an entirely new page?</p>