How do I type Japanese characters in InDesign?

Is there a workaround for editable Japanese text (vertical) in the English version of InDesign?

I came across an article from 2017 mentioning that I'd need to install the Japanese version of InDesign to work with vertical text. Apparently, there's also a nine-step hack involving installing and uninstalling different language versions to enable vertical text in the English version of InDesign.

Is this still the case? It seems a bit odd, especially since vertical text is readily available in Adobe Illustrator.

I've tried creating the Japanese portions of my layouts in Illustrator and copying and pasting them into InDesign, but the vertical text reverts to horizontal. If I copy the text along with an additional object, the vertical orientation is preserved, but InDesign treats it as a graphic, making the text non-editable.

Is there a non-destructive way to preserve both the vertical orientation and text editability when pasting from Illustrator? That would be a much better workaround than going through the nine-step Japanese/English installation hack. I've also experimented with the different clipboard preferences, but perhaps there's something I'm missing.

Alternatively, is there an InDesign template containing editable vertical text that I could reuse whenever I need vertical typesetting?

Either way, in 2026, designers routinely work across languages and writing systems. Restricting a fundamental layout capability based on the language version of Adobe's flagship application for typography and page layout seems increasingly difficult to justify.

Thanks!