1. \NewConfigure{name}[i]{body}

Hooks are just macro names seeded within the bodies of other macros. This command introduces a configuration command for a group of hooks, whose cardinality is given by a digit i and whose name is provided by the first parameter. The body determines the relationship between the hooks and the configurations provided for them.

2. \Configure{name}{parameter-1}...{parameter-i}

       \NewConfigure{try}[2]{%
          \def\hookI{#1}\def\hookII{#2}}
       \def\try#1{\hookI#1\hookII}
       \Configure{try}{* }{}  \try{ho}
       \Configure{try}{}{ *}  \try{ha}