The order column shows the order in which the tasks are to be run, e.g. 20.20 If the two numbers are the same as another task then those tasks can run in parallel. If the two numbers are different then those tasks run sequentially. This is an initial definition of dependencies. These dependencies can be altered specifically once the job has been created. (An example of dependency editing is provided in Tutorial 3).
Tasks can be moved up or down by selecting the task and clicking the Move Up or Move Down buttons.