Order Journey tasks based on allocation date and group completed tasks together

Summary:

We have a requirement to display the tasks in the order of allocation. Most tasks have different allocation dates based on the delay duration and therefore would like to display the tasks based on it.

Also would like to know if the completed task can be displayed in a group and incomplete tasks to show up first when an employee navigates to the Journeys page.

Content (required):

Currently, we see that the task order can be updated by adding the sequence number to the tasks or if it is not updated then the tasks will be sorted in the alphabetical order. We would like to know if there are other options to sort the display order of the tasks for the employees. Like, order the tasks based on the allocation date.