Great stuff. Thanks for pointing it out @Rafal_Bainie 

Thanks for the screengrab @LaurenWood  

Thanks @Madalyn_Destafney In fact there is one mistake in my statement. They are not the custom fields. They are all out of the box fields. Is there a way not to allow users view those task-level OOTB fields, but at the same time allow them to upload files to the task?

Clear.. They are under Task in API Explore just for future reference.Thanks again

No, unfortunately we have to operate under the constraint that it is not using queue topics and routing rules... 

Thanks - please could elaborate on where do you see "AssignedTo" and "Assignments"?I was checking the API Explorer but can only find the following but I think it might not be the one you referred to.....

Thanks - have you experimented something like this in Fusion? Any tips?

@Madalyn_Destafney Done. Thanks for the suggestion.

@Madalyn_Destafney What a brilliant idea! I have finally renamed all the groupings in the report. Thanks for sharing. @Kundanism maybe you could try the same

This is brilliant! Thanks so much Chris for taking your time to share this. I also use a Iterator as the step 6 to be able to output bundles so that I can do further manipulation on a non-aggregated level. Thanks again!