>I am not sure as to what sort of applications the CONTAINER and
>SEPARATOR classes could be used for.
>
>I would be interested in hearing about how others have used
>those two classes to good effect.
>
>Michel.

Separator is used just for one purpose - to separate controls in a toolbar with some space.
Container class may be used for many purposes: for example if you do not have enough space on the form - you put some controls in the contaner, make it invisible and when necessary (based on user input, or pressing the button) you make the container visible again. Several containers may even completely overlap each other but you can just show them one at a time at the same place. In general Formset, Form, PageFrame, Page - are specialized containers. Using Container class you may just disable the container itself to restrict access to the controls in it. Sometimes I use those pop-up containers instead of PageFrames.

Nick