Make sure you have installed Brand Premium plugin and have activated Easy Grid in Settings > Brand Premium > Add-ons.
In the page edit screen click on the easy grid shortcode button inside the visual editor toolbar and then click on add row.
Place the cursor between the opening and closing shortcode tags and click on add column. A dialog box appears. Here you can choose the width of the column (in percentage) for desktop, tablet and mobile devices; the padding; the colors for background and text.
Add as many of columns as you want in the row. Remember that the sum of the columns width should be 100 to keep all the columns on the same row.
To add content inside each column place the cursor between the opening and closing shortcode tags:
[eg_row] [eg_col desktop_width=50 tablet_width=50 mobile_width=100 padding=20,20,20,20 bg_color=#ffffff text_color=#000000] Your content here. [/eg_col] [/eg_row]