How to access Row Layout while designing a page?

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The above added screenshot is from one of the Tutorials “Add Columns to your app”. But, when i am trying to add Columns and change the design, I am unable to view this kind of pane in Properties Tab. Please help me out. The screen that I am able to view is as attached below  
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1 answers
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Can;t see anything wrong with how you try to do it. I think there is an error in the training’s screenshot. Inform them about it via the feedback button on the right side of the screen or a mail to academy@mendix.com

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