Worklist widget is referring to section "pyWorkListWidget", which has section-include "pyWorkListWidgetGridsAuto". In section pyWorkListWidgetGridsAuto, opposite to label "Urgent Work", we have refresh icon. For customizing this widget, you may need to override this section in your layer. Referesh in Final Section Rule.PNG
This image refers to a section, which you need to include for "Dashboard", this section doesn't refer for widget in question.