I want only 3 persmission levels on m project .
1. Full admin Access to the PMO
2. Projects managers/Lead should have the access level to add tasks, sub tasks and comments , assign engineers to the tasks and sub tasks and edit status (in progress, done , to do ) , for the project
3. Engineers(developers /testers ) - should be able to only edit the task status and add comment , no other field should be editable by them .
how can i do this ?