Thanks for suggesting various solutions. When I post in the community, it's nice to see kind people like this saying, "There's a way to do this!", "Isn't this the reason?" Thank you very much.
I didn't mean to talk too much about personal circumstances, but I'm a teacher and last year I used UIFlow and M5StickC Plus to give programming classes to my students.
As the class progressed, I thought it would be easy for the students to see what the students made each other, and for the teacher during the class, so I made a proposal.
Separately, even without that function (m5f alone) it was useful in class very much.
Rather than saying, "There's another solution, so why not use it?"
It's not very practical to switch between multiple services to use in class.
It wasn't that I really wanted to realize it or that I was in trouble, but that I was thinking, "How about something like this?"
But thank you.
I'm not a native English speaker, so I'm sorry if I didn't convey the finer nuances.