The below regex NCM will end the Stanza selection with a line not starting with space:
^[^-\s][a-zA-Z0-9_\s-]+$Below regex will allow space between string:
^[-_a-zA-Z0-9]+(\s+[-_a-zA-Z0-9]+)*$Place this regex test under Scope -> Stanza selection -> Beginning with and Ending with section.
Below is example of the regex test results