Batch Selection Subitems across several Item Lines

Hi

unfortunately it is currently not possible to have the batch selection of subitems analogue to batch selection on item basis.
We work for example with

Items = Channel
Subitems = Calendar Week

If everything is setup, we want to make a batch selection of all subitems and set them to done, instead of clicking through every item.

Would be great to put that on your roadmap!
Thanks