Messages will be sent by pressing Enter. If you press Shift + Enter you can insert a line-break.
If you set up Shift + Enter options as default settings, you can easily use the “line break” feature. Options are available in [Messages Options Settings].
1. Go to the top right corner of JANDI and click [≡] - [User Settings].
2. On [User Settings]-[Messages Options Settings], check [Send by pressing Shift + Enter].