& $\uparrow$ (up arrow) & Ctrl & Increase audio sample waveform scale. \\
& $\uparrow$ (up arrow) & Alt & Increase auto curve limits (zoombar selected curve). \\
& $\uparrow$ (up arrow) & Ctrl-alt & Increase all auto curve limits. \\
+ & $\uparrow$ (up arrow) & Shift & Move all tracks up by 1. \\
& $\downarrow$ (down arrow) & & Decrease timeline duration (zoom in timeline). \\
& $\downarrow$ (down arrow) & Ctrl & Decrease audio sample waveform scale. \\
& $\downarrow$ (down arrow) & Alt & Decrease auto curve limits (zoombar selected curve). \\
& $\downarrow$ (down arrow) & Ctrl-alt & Decrease all auto curve limits. \\
+ & $\downarrow$ (down arrow) & Shift & Move all tracks down by 1. \\
& PGUP (page up) & & Scroll current track vertical window pane up. \\
& Mouse wheel & UP & Scroll current track vertical window pane up. \\
& PGUP (page up) & Ctrl & Increase track scale geometry (zoom in track data). \\