On the web
1. Select Text from the toolbar
2. Either type the words or copy and paste them into a box. Select a new font color if you wish.
Text boxes are limited to 2000 characters.
3. The text box will automatically be added to your tray. The items in your tray are visible only to you. You can edit the text while it is still in your tray by double clicking it. Once you drag and drop your note onto the canvas, it becomes visible to all the canvas participants.
Source: Nureva Span