In Motion Dock, enter Edit layout, select Accordion, and click Module settings in the top bar. You can also double-click its slot in layout mode or right-click it and choose Module settings. Settings save as you change them and carry across projects.

Names and initial colors apply to future groups. The color scope controls swatches used on existing groups. Accordion Mode is the same saved switch as the main panel's Accordion button.

SettingDefaultBehavior
Group NameGroupBase name for new groups. Adds 2, 3, and so on to avoid titles already used in this composition. Blank input falls back to Group. Base names are trimmed, newlines become spaces, and at most 80 characters are used before any number is added.
New Group ColorCycleLabel color for new headers. Existing member colors are kept during grouping.
Color Applies ToHeader and membersExisting-group swatches recolor the header and its direct members. Header only leaves member colors alone. Neither option recolors nested groups.
Accordion ModeOffOpening a group through its row folds other groups at the same level. Turning this setting on does not immediately fold groups.
Check for updates automaticallyOnShared Updates option that checks for new versions when the tool opens.

Label choices

New Group Color offers Cycle and every label swatch. The group menu uses the same labels without Cycle.

Label choices
None, Red, Yellow, Aqua, Pink, Lavender, Peach, Sea Foam, Blue, Green, Purple, Orange, Brown, Fuchsia, Cyan, Sandstone, Dark Green

Cycle chooses Blue, Green, Orange, Purple, Cyan, Pink, Yellow, then Red, repeating according to the number of groups currently in the composition. Nested groups count too, so removing a group can change the next color.