Hello ,

You can add add Rating widget on your page by following way,

There is Star-rating widget available in toolbar search for it and add it on your page. Or you can follow the doc about rating link is below

Rating - Marketplace Guide | Mendix Documentation

Thank you.

Hello nithya inside layout grid use table and put your widget into table. Instead of grid use tables with listview. By this way you can give a look like a grid. Hope it helps.