For adjusting screen elements on a View, We can use various layouts supported by UI5/FIORI:
Border layout ,
Grid layout ,
Responsive layout. etc..
For ex : We can include our individual screen elements inside Matrix Layout while creating Row for matrix layout.
Note : One layout can be used inside another layout if required,
For Ex : Vertical/Horizontal layout inside Matrix Layout
Note : After adding screen elements to layout, we can place Layouts under various containers also like Panel, Tabstrip, Splitter, Roadmap etc..
Note : All those options will work under index file as well as in view file