Hi @sai saiedfar I've seen this in the Ambari Hive View 2.0, where if you once select a property, it becomes grey and cannot be selected again. I suspect its a UI bug, and will report it internally. To work around it, get out of the Hive View 2.0 and come back in and the property will be selectable again. When I tried just now, I just went back to the Ambari dashboard, waited it for the dashboard to load, then went back into the Hive View 2.0 and the property was again selectable for me to set. In the first screenshot, the values I've tried to select, did not update, and re-select are grey. In the second screenshot, ascreen-shot-2017-06-23-at-103601-am.pngfter going out and back into the Hive View 2.0, they are selectable again and able for me to set the execution engine to 'tez'. screen-shot-2017-06-23-at- 102625-am.png ... View more