Task has multiple dependencies

Hi, 

If task has multiple dependencies,

Is it possible to set "Task 6" (12) to start when all 10 and 11 are completed?

(When all 10 and 11 are completed, I want to move on to To-do.)


Currently, when 10 or 11 is completed, "Task 6" (12) Draft -> To-do is changed.

* Of course, you cannot transfer "Task 6" (12) to "In Work" state when only one of 10 or 11 is completed.

Thank you.