It tracks pages which have one or more sections that are incomplete where the notice box template
{{TRS-sectstub}} has been placed to alert the reader and other editors that further work is needed.
To place a page in this category, add {{Trainz-sect-stub}} to a tagged section, and give it an alternative sort order using {{{1}}} or | sort= string from the default {{SUBPAGENAME}}.
Refer to guidelines in Project, but in general, place the template in the page section with named parameter '|fix='defined to some work to be done in the section and a pipesort as '|sort=order' to alphabetize the page as desired in the stub tracking category. ... The sort could be numeric, indicating priority, for example.