title: Jenkins Pipeline Syntax for "p4sync"
body: <p>I'm trying to sync to Perforce in my pipeline script, but from the <a href="https://jenkins.io/doc/pipeline/steps/p4/#p4sync-p4-sync" rel="noreferrer">documentation</a> I don't see a way to set the "workspace behavior", even though the plugin itself seems to have <a href="https://github.com/jenkinsci/p4-plugin/tree/master/src/main/java/org/jenkinsci/plugins/p4/workspace" rel="noreferrer">that capability</a>.  </p>
  
  <p>I want the "workspace" to be equivalent to the setting "Manual (custom view)" I can configure in the UI as described <a href="https://github.com/jenkinsci/p4-plugin/blob/master/SETUP.md#workspaces" rel="noreferrer">here</a>. What parameters do I need to pass to the <code>p4sync</code> task to achieve that?</p>