Files can be linked hierarchically: a file can have sub files (children) and parent files. This lets you break down complex cases into manageable sub-cases.
1. Open the relations
Open a file and switch to the “Dependencies” tab. Using the “Child” and “Parent” toggles you choose the direction you want to edit. With “Show relations” (on the right) you open a graphical overview of all links.
2. Link an existing file
Click “Add Dependency”. In the dialog you search for an existing file – optionally from other projects too – and add it as a sub file.
3. Create a new sub file
Alternatively, use “Create File Card” to create a new file directly, which is automatically linked as a sub file.