If there is not a way to do this already I'd like to advocate for making an option so that when you create a custom field it can go to tasks only instead of tasks, projects, and folders, projects only, or projects and folders.
I have some custom fields I created that I use to create this print buying dashboard that shows my progress on all the projects at one glance, and all the custom fields unfortunetly show up on the project review as well so now I have a hard time deciphering what I need to fill in on the project view vs task view. This could be cleaned up if their was an option to only have the custom field be available from task view.
Thank you. 
