Greater control over the attachment of widgets to splitter bars or window borders at runtime. Whilst it is possible to dynamically set the ATTACH property of a widget, it is not currently possible to control what the widget attaches to via proc (this is determined by the position of splitter bars and fields during development). It would be useful to have the ability to disable a splitter bar dynamically, allowing widgets which were attached to it to attach instead to the next splitter bar (or window border).
For example a form has two editboxes painted side by side with a vertical splitter bar in the middle. The editboxes are attached (left and right) so that the user can re-size as necessary. If the information in the right hand editbox is no longer required it could be hidden, and by disabling the splitter bar, the left hand editbox would stretch across and attach to the right window border.
Having some control over splitter bars would further extend the dynamic layout abilities of Uniface 9 and allow greater flexibility when creating user interfaces.