Cycle Through Mixer Modes (Single, Arrange, All)

Shift-X

Show Advanced Tools

Deselect All

Option-Shift-D

Select Audio Channel Strips

Shift-A

Select Instrument Channel Strips

Shift-S

Select Auxiliary Channel Strips

Shift-F

Select Output Channel Strips

Shift-O

Select MIDI Channel Strips

Shift-E

Select Equal Colored Channel Strips

Shift-C

Select Muted Channel Strips

Shift-M

Select Previous (Left) Channel Strip

Left Arrow

Select Next (Right) Channel Strip

Right Arrow

Create New Auxiliary Channel Strip

Control-N

Create Tracks for Selected Channel Strips

Control-T