It’s great that we can now drag and drop channels to change their position directly in the mixer, but I’ve come across a bit of an issue. I use the Left Edge/Default/Right Edge feature a lot - as it works nicely with my hardware mixer. If I move a channel from the Left Edge to the Default Channel Position (for example) using drag and drop, then the option to update the configuration is not available in the Channel Visibility Configuration drop down. I have to open the Left Zone and change the Left Edge/Right Edge/Default setting there for the Update Configuration option to become available. Otherwise, as soon as I select a saved configuration, the channels pop back to their original position - and mess up my mixer layout.
This makes the drag and drop feature a bit pointless if you need to change a channel’s Left/Right/Default position.