Thread Modeler Control panel does not have any threads to choose from
sorry I do not understand your questions. There is no need to choose any thread in the threadModeler control.
You need to select the thread in the Inventor browser.
Please watch this short video, that explains how threadModer can be used:
You also can find more information on our wiki: http://wiki.coolorange.com/display/threadModeler/threadModeler+Documentation+Home