It would be quicker than having to enter the channel inspector, and mouse clicking to select input/out put on a channel.
A Key Command that brings up a window where you can automatically type in the channel you want, and hit enter. ie, it gives you the list of inputs and you could still select by mouse, but the keyboard is cued to type in the channel you want.
-Select channel you want to change input on
-Input/Output window keycommand pressed
-Window pops up with (typing) keyboard cued to type/filter out which channel you want
-type ‘11’, list gets reduced to Channel 11 in and auto highlights it
-Channel is now 11 in.