ConstThe popup panel is built by recursion: a nested member ({ group } or an inline { members })
renders through CommandGroup again. Menu-item labels/state resolve against the group key. The
quick button is disabled when every member is disabled. On execute the panel closes its own float
automatically (via useCommands/useFloat) — no per-button wiring.
Renders a command group - a list of members (commands, dividers, nested groups) - as a popup / split button / menu. Members come from a registered group (
groupKey) or inline (members).