@Brian OBrien I need a control that I can put controls in and be able to resize each control with horizontal or vertical separators.. So when you drag the separator your embedded control resize... Elastic bags??
Those are called Layout Containers, they are not new, some tool had them for decades. There are some requests to be added to xojo, but, since they dont even add a datetime control, Layout Containers seems not something in the near future of xojo.
Of course, you can do it manually, lots of code in the resizing event of the container control.
@Brian OBrien be able to resize each control with horizontal or vertical separators
That is A window splitter