Our upcoming release will include two new features for both our WinForms and WPF Diagram Controls.
Pan Tool
As you can see in the animation below, the Diagram's new Pan Tool allows you and your end-users to move or "pan" a diagram in any direction.
Display or Hide Subordinate Shapes
Whether constructing workflows, organization charts or anything in between, this new feature should help improve app usability and overall presentation/organization of complex diagrams.
This short animation helps demonstrate some of the options available to you, including the ability to control the collapse button's alignment and its position.