There is probably a simple solution but I can’t work it out. Basically the white vertical line that scrolls from left to right goes off the right of the screen and I can’t access the piano roll far enough to input the notes that I want. In the attached image you can see the DAW marker at the top but the corresponding marker in Synthesizer V has gone off to the right, and I can’t scroll there to access the notes that I want.
As soon as you draw the first note in the piano roll a group will be made on the track.
You can then make that group as long as you need by dragging the edge either in the piano roll or the arrangement.