Selecting local stereo inputs/outputs only left?

Let’s say I’m setting up a Stereo Mix with local inputs. I want to use the stereo outputs of a previous Stereo Mix or a Varispeed Sample Player. Either way, when I go to select those using the Locals menu I can only seem to grab the left channel. How can I grab the right, so I can put the left to the left and the right to the right?

Use the channel select button to focus the right channel before making your local source selection.

Front Panel - docs @ O|D


Thank you!