Adding a command to the macro language recognized by the interpreter at the core of the sniffle system can be a very simple matter. A single function in module WEBRTI.BAS, namely Exec, evaluates individual commands. By adding another Case to the Select Case statement at the heart of this function one can extend the sniffle macro language. Read about the inner workings of sniffle in the ``Under the Hood'' section and stare at the WEBRTI.BAS source. It should be obvious how to proceed.