For each of my projects within my projects app (project.project) I want to have a different layout of fields for my task object (project.task). For example, Project A will only show fields x, y, z while Project B will show fields a, b, c. There are enough changes that toggling fields conditionally in the same xml view is not good enough. 

I have defined a second xml view, project.task.form2, and a new window action, project x task, that calls this view. However, I cannot find a way to change my action based on project. When I edit the action for one project, Odoo changes all actions for the project model.

How can I have a separate window action for each project in the project app? Same question asked in an alternative manner, how can I apply a different Task view for each project?

I am using version 12.