Pushbutton with process=: I have created a few buttons for SAP and GuiXT starts with SAP but the buttons do not work. In the GuiXT window there is an error message saying that InputAssistant is needed for buttons.

The "process=..." option of the pushbutton command is part of the InputAssistant component of GuiXT that needs a separate license from us (Synactive GmbH). You either can fill out the "Trial licence" form in www.synactive.com (30 day trial license) or you can buy permanent licenses.