Starting from the working template in the System Fields example:
The Address Block call is a special form of the field merge codes. By placing an at @ sign before the field definition and having the field definition be on that points to an Address Book entry, eCandidus™ will format the address (if any) into a proper address block.
The code is the equivalent of using:
In our example above, the code would result in:
Next: Regarding Block