Inserts any helpful or instructive text in bold font such as 'always' or 'never' between the words 'should' and 'be' in the resulting message box; if no such instruction is desired, this parameter should be entered as a single blank typed space (in this sense, the parameter is required: it must be an instructive word OR it must be a blank typed space—it must NOT be left with no entry
Example
never
String
required
2
second parameter
This parameter takes any text you add to it and places it at the end of the sentence that the message box generates; it should NOT end in a period
{{always substitute}} – For the doc of the above templates; prints a message asking for it be substituted.
{{never substitute}} – The reverse of {{always substitute}}. For the doc of templates which should not be substituted; prints a message asking for it not to be substituted.
{{may be substituted}} – For the doc of templates whose substitution is optional.
{{substitution}} – Allows free-fill description of whether the template should be substituted and under what conditions.