trying to self teach myself Cubase LE4. I just started MIDI sequencing today and could not figure out how to open the Midi Key Editor with a blank slate so I recorded some scrap MIDI then was able to open the editor. Problem now is that I am out of room, I hit the end to the right and I cannot figure out how to extend this window? In the attached screenshot it shows that screen did extend once I hit the SHOW PART BORDERS button but any notes I add there are white, not red like the others, and don't play. Thanks very much, in advance.

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