Hey @priyakmusic , I’m Jonathan from the Editor X team.
You can adjust the number of columns in Settings > Layout > Product Grid > Manual and set the Columns to 4.
You can also use Responsive to have the number of items per row automatically adjust according to the screen width.
I’ve noticed that the preview in the Editor doesn’t show the correct number of columns on mobile, although it’s displayed correctly on the Published site. Thank you for reporting this, I’ve forwarded the issue.