Board Thread:Support Requests - Getting Technical/@comment-25201659-20150328150610/@comment-452-20150401201305

Yes, in that template is used only when  is unspecified.

This comment, "", is a template.

The template source portion is *&lt;nowiki>&lt;/nowiki> is
 * &lt;nowiki>&lt;/nowiki> is

The template invocation portion is

The output of this template is:

I'm unsure exactly what you need explained, but this proves there is absolutely nothing stopping you using named and unnamed parameters simultaneously. You could have tested this yourself and come to the same conclusion.
 * is
 * is