You can find the variables by composing a new message, and then by right-click, choosing Insert > Variable. Other than the date options, these will be replaced by data from the contact you have for the recipient when you click on Send.
You can find the variables by composing a new message, and then by right-click, choosing Insert > Variable. Other than the date options, these will be replaced by data from the contact you have for the recipient when you click on Send.