Switching priority schemes is unintuitive, confusing and potentially disastrous.

It should be possible to simply switch the scheme for the current project, like changing other shared schemes or workflows.

The current process where you can alter a large number of projects and lose previous configurations with one click i.e. click rather than a ctrl-click on the list of projects using a priority scheme will remove all other projects from the scheme. It isn't that obvious what is happening from then on, especially as it breaks with the normal way of switching project configuration.