How to add horizontal scroll bar in Orbeon Form Builder

Question

We have created a table with 14 columns in Repeat Section using Form Builder. Now we can't see cells. Because of narrowing of cell width. How to add a scroll bar to Form Builder to see cells normally?
UPDATED!
Now it looks like: this

Answer 1

The following seems to do the trick for a simple example I put together here:

.xbl-fr-grid { overflow: scroll }
.xbl-fr-grid .fr-grid { width: 1500px; max-width: none }

But you might want to adapt this to your own situation, for which using the Chrome Dev Tools or Firebug, as well CSS knowledge will come in handy.