Hi @Alim_Kumykov ! Great question. Due date triggering isn’t available at this time, but we have a solution that might work for you. It isn’t dependency specific, but it will help you space things in a way you might find helpful. 
I’ll break it down step by step, which I think will make it easiest to understand.
- Create a project
- Create tasks in the project in their anticipated order of completion
- Assign due dates to each task, where the due dates are spaced by the number of days required to complete each task. Ex. “Task B is due 3 days after completion of Task A + Task C is due 10 days after completion of Task B + etc.”
- Depending on when each task is completed, you can shift the due dates in one fell swoop, so the spacing stays the same:
** 1) Sort the project: Tasks by due date
** 2) Shift + click to select multiple tasks
** 3) Command + up arrow or down arrow to move the due dates for selected tasks back or forward
**–> This way, you can space tasks in your expected timeline and adjust the timeline for everything at once if tasks are completed early or late (rather than changing due dates for one task at a time).
Note that this system won’t work for subtasks, since you’re not currently able to sort by due date in subtasks. However, this should work like a charm with tasks in projects! Please let us know what you think.