Text will wrap automatically when the pre-defined maximum branch length is reached.
To Change the Maximum branch length:
- Switch to the "Tools" tab
- Click the "Options" button
- Switch to the "Display" tab
- Notice the "Max width" field. A smaller value in this field will result in shorter branches before wrapping occurs, whilst a higher value will allow longer branches without wrapping text.
To manually take a line break before the maximum branch width is reached you can type "Ctrl"+"Enter"