In the midi editor , there is the "advanced quantize" function . and using the step by step note input function

It s possible to buld 2:4 rythms or 4:4 rythms . It spossible to adjust some swing

But i don t know how to make a 3:4 or 4:3 rythm with the quantize function

I have tried to modify the signature , but , if the preview windows is change , it doesn t change anything in the played notes

I am expectig to this kind of things in this video : not really complicated : , and often used in guitars

For instance the note C each 4 beats , and the note A each 3 beats

Have you an idea , or a trick ?