What I have in mind is this:

say there are 6 projects to work on

1) nose pickers
2) corn pickers
3) citrus pickers
4) horse pickers
5) prune pickers
6) beta pickers

as it stands now; we can select which projects we would like to participate in; and optionally specify to participate in beta pickers as well as choosing if there aren't any elements in my preferred list; work on what ever is available.

What I'd really like to see is this:

pref
order project
2 1) nose pickers
3 2) corn pickers
6 3) citrus pickers
5 4) horse pickers
4 5) prune pickers
1 6) beta pickers

meaning when the scheduler looks for work for a participating machine; it looks first for the beta pickers project; then the nose pickers project and so on.

Wadaya say?