is there a list of Key command explanation/Help ?

is there a list of the commands found on key command list in cubase?
i try to figure out what perform audio export do for example(guess its for automating file export in a macro?). and other things as well. tried the manual but nothing there

perform audio export clicks the “Export” button in the export dialog, that’s all.

thanks .i figured out what it does, but there are so many commands i don’t know what they do, and there is no reference!

File>key commands
Help>Documentation>Operation manual