[pjc]

There's no way to order actions manually in context view. The only manual ordering of individual tasks is within a project.

However, if you click on the "View" button, you'll get a row of options to adjust your context view. You can group them, sort them, and filter them.

For example, you can sort by "Flagged". Then you just flag the tasks you want at the top of the list.

There are mixed feelings about OF's lack of a numeric priority system, but I personally find flagging tasks to be sufficient for my needs. I go through the entire list in the morning and flag the things I want to focus on that day. The relative priorities between the flagged items varies throughout the day (which is a major GTD principle), so there's no point spending time assigning them some artificial priority in advance.