Hey there,
I know you said you’ve taken a look at other threads, but have you seen this one?
It’s for the DT, but it’s fairly comprehensive. As I point out, what (I think) you’re trying to do is possible on a machine like the TR 8, but if you wanted an easy way to visualize 3/4 it’d be best to use multiple patterns at 12/16 scale.
I don’t have an OT though, so I’m kinda talking out of my ass. But my understanding is that every box works like this.