It's not really clear what you mean, but there is "View / Documents Side by Side" that does provide a view of two columns. If you really mean, you want it to print in two columns, best to set the page width half of your paper size, export to PDF, and use the facility of your printer to combine them when printing.
If you simply want to create the appearance of columns for exercises that don't extend the full width of the page, use horizontal frames.
if you explain what you are trying to do in more detail, we can understand and assist better.
Comments
It's not really clear what you mean, but there is "View / Documents Side by Side" that does provide a view of two columns. If you really mean, you want it to print in two columns, best to set the page width half of your paper size, export to PDF, and use the facility of your printer to combine them when printing.
If you simply want to create the appearance of columns for exercises that don't extend the full width of the page, use horizontal frames.
if you explain what you are trying to do in more detail, we can understand and assist better.