In certain scripts, to avoid iterating over the entire set of possible values, we use charge injection dictionaries to define which inner loop values to scan over for a given set of outer loop values.
Charge injection dictionaries are handled like any other ancillary files. They are always referenced to by alias.
<ci_dict dict_name='dict_name' dict_type='dict_type'
dict_key='param_name' step_size='1'>alias</ci_dict>