title: Button inside Webix datatable cells
body: <p>I need to create a column of buttons inside my Webix datatable.
  I can customize a simple html-button, like this:</p>
  
  <pre><code>webix.ui({
    view:"datatable",
    columns:[
      . . .
      { id: "button1", 
        template: "&lt;button class='custom_css'&gt;Click Me!&lt;/button&gt;", 
        width:70 }    
    ],
    onClick:{
      button1: function(ev, id){
         . . .
      }
    }
  });
  </code></pre>
  
  <p>but after all it's not as convenient as I would like.</p>
  
  <p>I wonder if there's another way to do such thing?</p>