To create a new scheduled message, you can click on the messaging (envelope) icon in the top right corner and then select "Scheduled Messages".
When creating a new scheduled message, you have the option to schedule a date/time and if the message is an email or a text message, one-time or recurring.
You can also select the message "Sender" as yourself (the logged-in user creating the scheduled message) or Student Success & Engagement System (Designed for sending general "notifications" to students).
Please refer to the video for the exact steps:
More information about sending messages from SS&E System can be found here:
SS&E "Aviso System" Email Address/No-Reply Email Messages