@russ I'm learning Japanese (I'm from Czech Republic, if you want know), I using Alexa as practice tool.
I learned using "Arekusa, dentaku o on ni shite" or too "Arekusa, o on ni shite" where after it Alexa asking on command ("dentaku").
In TC program I have in voice command "電卓" because "dentaku" don't work.
And yes I want using english commands with Japanese-setuped Echo because still any Japanese words is little hard for me.
I wanted using 上 [Ue]= "Up", 下 [shita]= "Down" but Alexa have problem recognize commands... In English version "Up" and "Down" working great. And on Japanese Echo "Up" and "Down" don't work...
...But Thank you very much for great work and interest in this problem