Removing the Tool container from the Workflowview
I've just recently been asked to make a 'minor' change to a customized version of the WorkflowView which forms part of the System.Workflow.ComponentModel.Design namespace.
The image below highlights the ToolContainer:
By investigating the WorkflowView object using reflector I discovered that there was an internal field called ShowToolContainter that is hard-coded to true. See below:
By using reflection you can set this property to false!! Thus removing those irritating buttons.

Type t = _workflowView.GetType();
////
Set the parent field.
t.InvokeMember("ShowToolContainer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.SetProperty, null,
_workflowView, new Object[]
{ false });
Where there is a will there is a way!! You can use this technique in future to set other internal properties which the framework does not expose.
Jean