By default the activation button should be enabled under different license mode. Would you please send me your vp.log file for diagnosis on your case? You can find it under %appdata%\VisualParadigm folder. Simply enter %appdata%\VisualParadigm to the address bar of the Windows Explorer will bring your there. You can send your log file to support-team@visual-paradigm.com for diagnosis. Thanks and look forward to hearing from you.
