The vertical layouts ofted used in East Asian texts, and the usage appearing not only in document but also in images, see:
Several scripts as Mongolian also requiring top-to-bottom, left-to-right directionality if they are inserted in the image.
https://commons.wikimedia.org/wiki/File:Monggul-Ulus.png the text is transliterated as mongɣul ulus
LibreOffice Draw looks no way to select vertical text directions. However Inkscape has already implemented both two directionalies, thus LO Draw need also implement these two directionalies for users’ needs and interoperateabilily.
Steps to Reproduce:
User Profile Reset: No
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Yep, let's set to NEW