We've always accepted questions about how to use software that's involved in daily project management activities. The types of questions we tend to avoid are those asking for software recommendations. The latter questions tend to lead to spam and very low quality answers that don't provide any context as to why the user recommends the software.
Most Stack Exchange communities say no to recommendation questions, but Software Recommendations Beta SE recently started public beta. Such questions are so tough for the Stack Exchange format that the community outlined some pretty clearly defined rules as to what constitutes a good question and what constitutes a good answer, but by focusing only on recommendations, there's a good chance they can make it work.
As to the four examples you mentioned, I know Microsoft Project is used by a lot of project managers, and many of the questions involve formulas that relate specifically to metrics people ask about in other questions. However, JIRA is bug tracking software. Project managers typically don't track bugs or create tasks, so I'd lean towards closing those as off-topic.
I'll add that if you see ways to edit such questions to make them fit better, editing is strongly encouraged. Editing questions and answers to make them shine makes it more likely that visitors to our site will see it as a professional resource of knowledge. That, in turn, leads to growth.
