Save:

Stores the entered details without launching the order. It can be launched at a later time.

Schedule:

Schedules the order to send at the specified date and time. (does not appear if IMMEDIATE was selected).

Launch:

Launches an order that was selected to send as an IMMEDIATE message.

Cancel:

Discards all details and exit.

Save as template:

Stores the order details without launching and add the message to Templates.