Again I find myself scratching for adequate documentation on NetSuite WMS. I am trying to set up the Print pick carton labels? feature. According to what I have found, enabling this rule,

It adds the Mobile Printing capability to the Enter Carton page.

But I am not told in what way it is enabled. So my question is where is the print option displayed? How do I print the label?

Secondly the rule description on SuiteAnswers reads

You must create separate copies of this rule for each Use cartons rule that you have enabled.

I have enabled use cartons for both Single and Multi Order picking.  I am finding it unclear what should these processes be on the rule record and what values I should set on in the field.