Where is my shortcut key to toggle Romaji input and Kana and or Direct Input?

ctrl + shift + K

I am amAZED at the lack of information on the internet about this question! I though if I searched hard enough, I would find it. Nobody really knows the answer. They just flit around talking about it. Maybe it's a hard question or I didn't look long enough. Anyway, it seems like NOBODY, I mean, NOBODY, knows the answer. And then they will excitedly come back saying, "I figured it out! I figured it out!" But they didn't actually figure out exactly what I wanted to know... which IS..... (I know, I think I'm the only one with a question that matters...) and it is the following:

What is the SHORTCUT on an ENGLISH/AMERICAN QWERTY Keyboard for toggling between direct kana input and romaji input? Not via the settings. Not via the button on the language bar. Not with a button on a JAPANESE keyboard. No!!!!!!!!!!!!! (I WISH I had a Japanese keyboard. I don't!!!)

I ALWAYS have to go my settings and find out the answer.

I can't believe I haven't already written this down! I even made my own Japanese-direct-input keyboard (glued pieces of paper) and I forgot how to set it up electronically via the shortcut! I forgot to write it down!!!

(Can you feel my agony?!)

I am going to go look again, and I will write it down this time. GRRRRRRRUGH!!

I would like to compare this someday in Japanese, so here are the supposed terms, from what I can guess. Actually, I'm sure these are terms that refer to Romaji and direct input, respectively: （入力「にゅうりょく」）

ローマ字入力　ＶＳ　かな入力

ctrl + shift + K

i.e. hold down the control key, then shift, then press the K key

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Does this work for anybody else?

...

I feel silly.

Good night!