Library Channel input

Hello

I am trying to do a full channel input or Output save, but I can not find a library where to record it.
Do you know what is the process for that so-easy thing on others mixers?

Thank you

Xavier

Top left corner of the screen, touch the channel name (like you want to name the channel). The channel Lib is on this page.

Thanks a lot, it was below my eyes, and sorry for the late answer.