To hide - turn off - the left menu - or sidebar - on a ViewModel you add the tagged value HideSidebar = true to the ViewModel root

A.k.a : hide left side , hide all actions for a specific page

Update 2020-06-15: To make it easier to have page unique styles in CSS that also target items not part of the ViewModel (ie the menu's etc) we now add attribute turnkeyview and turnkeyviewmodal set to ViewModel name on document root.

Example to hide the main menu on page named ViewValueStore only and to make that view pink background:

  html[turnkeyview="ViewValueStore"] #globalNavWrapper {
   visibility: hidden;
  }
 
  html[turnkeyview="ViewValueStore"] #bodyWrapper{
   background: pink;
  }