1. Tap an item to select it.
  2. Tap a beam to select all beamed notes.
  3. Tap an empty part of a bar to select all items in the bar.
  4. Tap and hold, then drag to select items.
  5. Use the button to Add to Selection.
  6. Use the button to Extend Selection.
  7. Use the System Track to select items across the system.