title: How to align blocks in PlantUML class diagrams?
body: <p>I am using PlantUML to make simple class diagrams and the tool is awesome, but I couldn't find any way to align classes with each other except putting them into packages or using relationships like Alice -left-* Bob. What I need is something like:</p>
  
  <pre><code>@startuml  
  class Bob  
  class Alice  
  class Dan  
  **Dan aligned Alice: horizontally**  
  'or using a grid?  
  **Bob at grid (2, 3)**  
  @enduml
  </code></pre>
  
  <p>Is there a way?</p>