Yeah, I do that, but I just add it to new daily notes with Keyboard Maestro. Every time I start a new daily note, I write ./daily, and it expands into a script with, roughly, ← [[YYYYMMdd-1]] | [[YYYYMMdd+1]] →.
I can share that expansion if you’d like.
As @rigmarole noted, the release notes refer to a new Command Palette action (that can be assigned to keyboard shortcuts).