I've fixed the coordinates in the popup bubbles. I have the fix inside an "if (genRoutine==Quadbezier)". I don't know if it shouldn't be a general fix instead because I tried the GEN07 example and when you have a handle with y=0 it displays 0.7 or something like that. But I didn't want to touch it in case you had a reason for doing it like that.
I did something better regarding this, but it is still accurate/not-perfect. I don't see an simple solution because depending on the size and MinMax of your f-table the quantization makes it impossible to create a true straight line. I mean for example, sometimes a straight line requires a ctrlPoint with y=91 but with the mouse you can only drag the handle to 90 or 92. Anyway, as a musician I don't think this is really a big issue.
I'll work with the opcodes next.