I have been looking for an open-source project planning package that can print gantt charts, do resource levelling and manage the critical path, Calligra Plan seems to be one of the few options. I downloaded Calligra for Windows and installed it, but it does not seem to have included Plan (or if it did, I can't see how to create a project and start adding tasks to it). Can someone please give me a blow by blow on how to install Plan for Windows 8.1 (I don't think I need the other Calligra apps, at least, not now), and how to create a new project and start adding tasks and dependencies to it? Or tell me where this is documented?

Many thanks - Rowan