Hi ,
Is it possible to set up so that a subtask in a different kanban than the task it is attached as subtask to?
We could use it to be like this:
Project & kanban board A has issue/task 1 with subtask 1 (also set up in project / kanban A) and subtask 2 (set up in another project B and another kanban B – but as a subtask to A).
I have tried and illustrate it with a drawing J : 
If developer tries to set the Issue 1/ main task to DONE status – this is not possible because the subtask 2 (from another kanban) is NOT finished.
So it is not possible to set an issue to DONE if there are undone tasks or subtasks – ALSO from a different kanban or project?