This is the main operating form, with a model loaded.
It is a multi window form with a Diagram list window, a diagram window if one is open and the text window.
Click an area for more help
Using the window Menu there is a choice of Multiple and Single window styles.
In Single Style (Default):
ControlDraw fixes the list of diagrams on the left of the workspace, and sizes the diagram to fit the space between the list and the right hand side of the workspace When this is selected you only have to click once on the list to open a diagram. If you do not select this then you may have several diagram opens at once, this is useful for working on a collection of similar or related diagrams
In Multiple Style
You can open many diagrams at the same time.
Diagrams appear in the same position they did last time