While hovering over a White Key on ARCADE’s GUI, you will see an Edit button appear at the bottom of the key:
Clicking this button will open the Loop Edit page.
The top bar of the Loop Edit page contains the name of the Loop you are currently editing. The Keyboard icon in the upper right corner of the Loop Edit page toggles MIDI Follow on and off.
When selected, the Loop Edit Page will show the most recently MIDI triggered Loop voice. When MIDI Follow is deselected, the Loop Edit Page will remain on the currently selected Loop regardless of the notes being played.
The X icon to the right of the MIDI Follow button allows you to exit from the Loop Edit Page.
Check out this video to learn some tips & tricks about the 'Loop Edit' page: