How can I change position of alert message box


I have editor screen where country ,crop are required fields.When I forget to select country or crop drop downs I am getting message as country is required or crop is required at right side of the bottom.But I need this alert box in the middle of the screen instead of getting at the bottom.
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You can override AbstractFrame#showValidationErrors method in your screen and change the way notifications are shown.

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To have a more clarity,Can you please send a sample demo ?


Thank you Yuriy Artamonov ,I have solved the issues thanks for replaying .


Can we point out the field when it is required in editor screen ,Similar to Facebook.
Is it possible to achieve in Cuba.

Screenshot (76)

Please create a separate topic, it would be useful for other developers.