Ref:
ToDoList
https://www.abstractspoon.com/
Or
https://www.codeproject.com/Articles/5371/ToDoList-7-2-9-An-Effective-and-Flexible-Way-to-Ke

I am looking for a plug-in solution for To-do list.

Function:
How to Process Data = A widget with two tree Pop ups
Left one should be blank and right one would be containing unsorted files(random order) bg=orange
Provided with keyboard navigation for assorting the files in right order and as soon as they are in right order they move to left tree marked with bg=green
Looping the procedure until its completed.
Overall tracker updating with percentage (How much completed and how many item pending etc.)
Load same kind of process tree based on keywords.