Ability to bulk modify intervals based on filter à la Taskwarrior's "modify"

Now that I've been using Timewarrior a while, I'm starting to better categorize items (mostly via changing the tags and possibly using annotations as well). I want to do various things like:

* for all intervals matching certain tags, add some other specific tags
* for all intervals with tags matching a certain pattern or regex, add some other specific tags
* rename a tag for all intervals having that tag
* remove a tag from all intervals having that tag

Currently I think I need to do a summary listing of the filter in question, extract all the IDs, and then construct a new command to add or remove tags for all IDs from the previous analysis. It would be GREAT if I could instead do this automatically based on a search, similar to how the `modify` command works in [Taskwarrior - Modify Command](https://taskwarrior.org/docs/commands/modify.html):

> The same change, but to a set of tasks matching the filter:
>
> `$ task \( project:outdoors or /planting/ \) modify -home +garden`
>
> Correcting a spelling error in a task description:
>
> `$ task 1 modify /teh/the/`

I realize Timewarrior currently has a [modify](https://timewarrior.net/docs/timew-modify.1.html) command that unfortunately acts on one interval and the existence of which probably complicates this feature request.