Use the plus editor to add content to a content part or question.

Add content

To start editing, click on the to add content to the field.

Determine the content type you want to use.
See also: What content part type should I choose?.

Add rows and columns

Click on the  + to add new rows and columns to your canvas.

You can split each field vertically to add a column and split the square horizontally to add a row.

Removing content

Click on X  to delete a whole unwanted field and on the Bin to only delete its content.

Canvas Settings

Canvas is the screen on which the content is shown. You can determine the size of your canvas with the slide switch.

Click on the Gear or the tab Settings to set the canvas settings on Relative or Absolute.
Click Update to save. Click at the split button Update and new to save and create a new content part.