How do you enable Auto Scroll in a sequence pane, and MIDI devices?

Question

Hello,
I am just getting used to Garage Band for the first time. I am finding that Garage Band is much easier to deal with than Mark Of the Unicorn from a musical standpoint.
I am now converting my many MIDI sequences to GB. I have run into these three issues that I cannot seem to figure out.
1. I have both the "Main Secuence" pane and the "Piano Roll/Score" pane arranged vertically. But the Secuence pane auto scrolls, as the timing progresses, but the "Piano Roll/Score" pane does not. How do I get these two windows to enable/disable auto scroll?
2. How do I select from a starting bar to ending bar, for a given track, coping it, and pasting it to another track in the another track's sequence point?
3. How do I add other MIDI decices that I have pysically connected, and assign specific tracks to these physical MIDI divices and their defined Timbers?
Thanks in Advance.
Jeff Cameron

Answer 1

Thank you very much, Cristoph!
With your help, you have answered both questions 1 and 3.
Concerning question 2, I can see that when I click on the track header, the entire track is selected, but I am trying to physically select from one bar to another in that track.
I've tried clicking on the start bar and draging to the end and releasing. The whole track is still selected.
I've tried holding down the Shift key and doing the same. Still the whole track is still selected.
I guess I am missing the basics of marking and selecting the start and end point from within a basic track.
I'm already much farhter along with your help, and I appreciate your help, very much!
Jeff Cameron
(More a computer geek than a musician.)