To give your content a multiple column layout, Morweb provides you with the content align tool that appears on every widget on the page.
To be able to create multiple columns you need to drag multiple content widgets on the page all sitting one after the other. All these content widgets will become your different columns. On the top most content widget you click on the Align Tool to open up the Align Content window. Here you will be given different options for size ratios for your columns.
Once you choose an option the changes will take effect on your page immediately.