No support for multiple <TBODY> - unless it is by design

It's common to divide your table into several sections (or TBODY's). It does not seem like its supported? 

```
<table class="table-data" cell-cursor="cc">
  <thead>
     ....
  </thead>
  <tbody class='premiumCustomers'>
    ....  
  </tbody>
  <tbody class='normalCustomers'>
    .....
  </tbody>
</table>
```
