Require SSL on MVC View

With web forms I can designate an individual ASPX page to require SSL and IIS will ask the user to pick a certificate from their CAC. However, in IIS Manager on the server for an MVC site, the individual views are not listed so I cannot require SSL for a particular view. Is there any way to do this?

My web.config has been changed:

 <location path="FileSharing/Welcome" allowOverride="true"></location>
  <location path="FileSharing/Index" allowOverride="true">
<system.webServer>
  <security>
    <access sslFlags="Ssl,SslNegotiateCert,SslRequireCert"/>
  </security>
</system.webServer>

Error 500.19

Error Code 0x80070021

Config Error This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".