I've handled tab control with a dropdown but never with a checkbox. With a dropdown, you name each tab with a name from the list. But when trying to control tabs with a checkbox, what do you label the tabs? I've tried "Blank" and "Yes" and no matter if the checkbox is ticked or unticked, the "Blank" tab always appears. What value does ePDM see a ticked checkbox as, and is that what you would name the tab that you want to see?