Add an option to Checkboxlist via an Action

CheckboxList::make('roles')
  ->helperText(function(): Action {
    return Action::make('createRole')
             ->label('Add a new role')
              ->link()
              ->form([
                      TextInput::make('title')
                        ->required(),
                      TextInput::make('hourly_rate')
                        ->label('Hourly Rate')
                        ->required()
                        ->type('number')
                        ->inputMode('decimal')
                        ->default('25.00'),
                       ])
              ->action(function (array $data): void {
                $newRole = new StaffRole;
                $newRole->title = $data['title'];
                $newRole->hourly_rate = $data['hourly_rate'];
                $newRole->save();
              });
   })
    //->url(fn() => route('filament.admin.resources.staff-roles.create'))
    ->required()
    ->relationship(titleAttribute: 'title')
    ->columns(4)
]);