Open your Google Docs document
Select the text you want to format, or place your cursor where you want the columns to start
Click Format
Hover over Columns
Choose one column, two columns, or three columns
To customize column settings, click Format
Hover over Columns
Click More options
Adjust the number of columns, spacing, and line between columns
Click Apply
To apply columns to only part of the document, insert section breaks before and after the selected text
To remove columns, select the text or section
Click Format
Hover over Columns
Choose one column