After creating a project goal, milestones and subtasks within those milestones can be created. I love this feature, but I sometimes have very complex tasks that I need to categorize. Therefore, if possible, I would appreciate it if you could add a plugin that allows you to add an unlimited number of subtasks one after another or group projects within folders. Here's an example of where I used subgroups: I'm grouping the courses I need to study at university. Meanwhile, I was gathering the materials I needed to study for the courses, the topics covered in those materials, the number of pages in each topic, etc. I often find that 7-8 subgroups are needed. It would be great if you could add this plugin so that the main quests are completed as soon as the sub-quests are finished. For me, it makes no sense to complete sub-tasks separately from main tasks. Because if I've already marked the lowest subgroup (for example, pages), then the topic is already finished. When the topics are finished, the material (for example, the book) is also finished. Finding an app like this is very difficult; I used the Griphy app a bit recently, but even there, the system for tracking subgroups is complicated.