Note these only apply under the "Default" keyboard mode. To learn more keyboard shortcuts (key bindings)
command-E(mac) /ctrl-E(windows): open a file by searching (very fast compared to using the mouse)command-L(mac) /ctrl-G(windows): go directly to line number (useful for debugging exceptions)option-W(mac) /alt-W(windows): close tabcommand-[,command-](mac) /ctrl-[,ctrl-](windows): Go to next tab left ([) or right (])