Adding a context help page to your VelocityContainer view is easy. Simply use one of the two method calls from the VelocityRenderDecorator:

<fieldset>
  <legend>My form</fieldset>
  ## Add a context help launcher with a wrapper container that makes 
  ## it float at the top-right corner of your content

  $r.contextHelpWithWrapper("org.olat.group.ui.edit","grp-BuddyGroup-des.html","chelp.hover.bgDetail-BuddyGroup")

  [... your stuff here ...]

</fieldset>

or...

## Add a context help launcher without a wrapper to place it 
## somewhere in your HTML flow

For help press the $r.contextHelp("org.olat.group.ui.edit","grp-BuddyGroup-des.html","chelp.hover.bgDetail-BuddyGroup") icon