If you are working in an industry where you have contact with the authorities, then you may be asked to provide all information about a case. If this case consists of multiple child workflow instances gathering those documents can be annoying. Especially if you need to do this for all cases in a specific time frame.
But there's an easy solution to get all attachments in one .zip file.
I've covered the implementation here.
While WEBCON BPS 2025 R2 has a new report field, this isn't used. I've came up with the idea in a 2022 R1 environment some years ago.