When reassigning workflow tasks It is possible to "Apply assignee to all languages" within a task in the workflow. It would be great to also have the option to replace a person globally in the whole workflow. For example, if you defined in a project template that a certain project manager is assigned to various tasks in the workflow, but for whatever reason another project manager has to take over all those tasks, it would be of big help to be able to replace that person globally, rather than having to do it individually in each task.