New Diagram window should be removed or have Triquetrum workflow selected

[cxbrooks]

In Triquetrum, when creating a new workflow, a window titled "New Diagram" appears and it has only one choice for Diagram Type, which is Triquetrum Workflow.

As we only have one diagram type, perhaps this window can be removed.

Or, perhaps the Triquetrum Workflow type can be selected?

This is a minor issue, but it catches my attention every time.

[erwindl0]

Would we be so ambitious as to think about integrating e.g. Ptolemy FSM as well (or one or more other diagram types)?
Then we would have a second diagram type or more...