[Brian]

Originally Posted by mcoad

But in Project mode, if you sort by Remaining, they simply reappear further down the Today list, even though they are for Tomorrow!

In planning view, we sort (or group) one project against another, but we do not rearrange the contents. We also won't separate the project out into multiple chunks, with some in the 'today' bucket and some in the 'tomorrow' bucket. To plan your project, you need to see the whole thing as a contiguous list.

We also assume that you put the tasks into an order that matters to you - list position is essentially an infinitely-deep priority system. To respect that, OmniFocus will not reorder items in the task list - if a repeating action is the third action in the list, the 'tomorrow' version of the task will also be the third action in the list.

In context view, projects are completely ignored. Actions exist as atomic bits, which you can sort or group regardless of which project they come from.

Originally Posted by mcoad

OF sorts by projects, and not tasks, and looks for the earliest date and uses that value. I never really understood this, but what it seems to mean is that for OF the task exists in the here and now even if it’s actually due in the future, so is included in Today’s list but with Tomorrow’s date.

If you have a project with twelve items due tomorrow, and one item due today, the whole project will appear in the 'today' group. The project will only move to the 'tomorrow' group when there's nothing in that project that's due today. The project is sorted (or grouped) on the basis of the earliest date that it contains.

I'm of the opinion that we either need to change the group headings to make this behavior clearer, or we need to set it up so changing your sorting or grouping collapses all the projects that are visible, then does the sorting/grouping. That would make it more obvious that we're only sorting projects, not the contents of projects.

The upshot here is that planning mode is meant to show you your whole project, not a filtered or chopped-up portion of your project. If you want the latter, you can switch to context view and sort/group your actions once they've been broken out of the project lists.