Wizard with Summary Step and Back Buttons

First, the CreateRecord\Concerns\HasWizard trait must be used to add a wizard form on the Create page.

use Filament\Resources\Pages\CreateRecord;
 
class CreateTask extends CreateRecord
{
    use CreateRecord\Concerns\HasWizard;
 
    protected static string $resource = TaskResource::class;
}

Steps for the wizard are added in the protected getSteps() method on the Create page class.

use Filament\Forms;
use App\Models\User;
use App\Filament\Resources\TaskResource;
use Filament\Notifications\Notification;
use Filament\Resources\Pages\CreateRecord;
 
class CreateTask extends CreateRecord
{
    use CreateRecord\Concerns\HasWizard;
 
    protected static string $resource = TaskResource::class;
 
    protected function getSteps(): array
    {
        return [
            Forms\Components\Wizard\Step::make('Name')
                ->schema([
                    Forms\Components\TextInput::make('name')
                        ->required(),
                ]),
            Forms\Components\Wizard\Step::make('Due Date')
                ->schema([
                    Forms\Components\DatePicker::make('due_date')
                        ->required(),
                ]),
            Forms\Components\Wizard\Step::make('Notify User')
                ->schema([
                    Forms\Components\Select::make('user_id')
                        ->required()
                        ->label('User')
                        ->options(User::whereNot('id', 1)->pluck('name', 'id')),
                ]),
            Forms\Components\Wizard\Step::make('Summary')
                ->schema([
// ...