Refresh Scripted Business Objects

Having followed the directions, everything works in creating a scripted Business Object. The problem we now have is that we cannot get this Business Object to refresh. In the Data Access pane there is no property 'Always Refresh' for the Business Object instance.

To demonstrate this, use the given sample (sample3) and add a form to the ReadOnlySample project. Add one of the Business Object to that, and see if you can set 'Always Refresh' on the instance.

I assume that there is another method we need to implement, but there is no documentation of this method. Frankly, if scripted Business Objects cannot be refreshed, they are almost useless to us, since most of the functionality we require needs a refresh.

If anybody is able to tells us what we are missing, or point us to any documentation at all, we would be grateful.