Make rules for a sutask

We would like to work non-linear with our tasks/subtasks. When a subtask is marked as complete the task moves then to another column and / or in another project. The task is then visible in two projects when the subtask is marked as complete.

A project is part of the process for us.
Project 1 is Operations
Project 2 is Processing

With us, a task goes from project 1 to project 2. But when a certain subtask in project 1 has been completed, it should already be visible in project 2.

Now a subtask can be linked to another project, but then it is also immediately visible in that project, but would like it to be visible when marked as complete

A post was merged into an existing topic: Allow Rules for Subtasks