Tasks

In the Tasks window, right-click on the task list you want to edit and select the Edit option.

Alternatively, click on the task list and then click on the Tasks menu and select the Edit option.

Note: The default access setting is that all users will have read/write access to the task list. If you want to restrict access then follow the next step.

Click the  Permissions tab.

Click the Apply security permissions to this Task List checkbox.

Move users from the 'Available' list to either the 'Read and Write' list or the 'Read Only' list. You can either select the users and move them with the move arrows or you can use 'drag & drop'.

Click the OK button to close the window.