How to access Row Layout while designing a page?

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  
1 answers

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