OK. Mastadon has magical powers.
Within a second after posting this, I was like "why won't I try org-agenda and see what's available...?" I use Ivy which helps with that.
Well duh. It's Bulk mode (you get into it with capital B in agenda dispatcher).
Thanks self, I guess, where have you been for two days >.>
This Mastodon instance is for people interested in technology. Discussions aren't limited to technology, because tech folks shouldn't be limited to technology either!