Set depth level for nodes

[yuritpinheiro]

Is your feature request related to a problem? Please describe.
I would like to have a option to set the depth level of nodes. It is interesting for flowchart where the End node should be the left/bottom most even if the parent node is way upper in the tree.

Describe the solution you'd like
An option to define the depth level when creating the node:

graph TD
  A[Start] --> B{Is it?}
  B -->|Yes| C[OK]
  C --> D[Rethink]
  D --> B
  B -->|No| E[End](5) %% Define depth level as 5

or a class atribute to define it:
style E depth:5

Describe alternatives you've considered
I put an invisible edge from a last level node to the end node as workaround:

graph TD
  A[Start] --> B{Is it?};
  B -->|Yes| C[OK];
  C --> D[Rethink];
  D --> B;
  B -->|No| E[End];
  D --- E;
  linkStyle 5 stroke:#0000, ;

Additional context
That would be nice for flowcharts since the user will be able to control the flow manually.