Redmine

I'm using Redmine to manage two projects: each of them has some custom fields but I have some trouble trying to use them inside the Issue list view.

I have two tracker (one for each project), each one with a set of custom fields assigned to it. I would like to show them inside Issue view list depending on the assigned project.

e.g.
Project A -> Tracker A -> custom1, custom2, custom3
Porject B -> Tracker B -> custom4, custom5

Issue view for Project A -> standard fields + custom1, custom2, custom3
Issue view for Project A -> standard fields + custom4, custom5

I looked for options inside Administration->Custom fields->Issue but I don't see anything to set custom issue/project relation; there's only a "For all projects" settings but it's a kind of "everything or nothing", not really useful