Find completion sprint from string

[Fabian_Winkler]

Hi, 

I am trying to create a sprint base / interface. 
The base is most likely already done, but I am facing issues with the interface, since I can set up only 3 hierarchy level.

My Goal is to have an interface as a list with following "grouping" or nesting

• Sprint - <DATE>
  • Category (e.g. Webinars, Product Launch, Marketing Events)
    • Project (e.g. <Product Name> Webinar)
      • Tasks (e.g. Create Webinar Slides)

Every level shown above is a separate table in my base and they are linked to each other.

I tried several ways to solve this, e.g. with Grouping, but grouping is always on the lowest hierarchy level (Tasks), but I would need it for the Projects. Then I could group by Category and my problem would be solved. 

Another way would be to have no Projects, but instead nested Tasks (only 2 levels required then (Sprint + Tasks). 
However, this is also not ideal.. because without an interface it is difficult to read the data. 

Another way would be to have again 2 levels (Sprint + Tasks) and then group by Category + Projects. 
However then I am not able to see how is assigned to the project, what is the status, start and end date. 

Attached is a combined version of the last two options (BOMP Webinar as a project + BOMP Webinar as a Task (with nested tasks)

Anyone having ideas here, how I can solve this in the best way?
Ideally with keeping Projects. 
I really like how the nested tasks are shown within this interface, but the main "task" should be still a project 😕