It's very common for <screen> to include localized text that is output by the commands that are run. Thus I would like the content of <userinput> and <computeroutput> to be included in the PO files so that translators can update the strings to match those that would be output in their locale.

<programlisting> is more discutable by I tend to put descriptive comments in the native language so it would also be nice to be able to translate those elements too.

Following that logic, when this new option is enabled, those tag should not be forbidden inside <para> and instead the content of para should simply be split (before/afer the verbatim text).