Is it possible to show/display widgets in relation manager?

The case is I want to make a relation manager called Store Performance to display widgets instead of table

I tried this but not working

<?php

namespace App\Filament\Admin\Resources\MerchantResource\RelationManagers;

use App\Filament\Admin\Widgets\MerchantStats;
use App\Filament\Admin\Widgets\ProductsAvailed;
use App\Filament\Admin\Widgets\SalesChart;
use Filament\Resources\RelationManagers\RelationManager;

class StorePerformanceRelationManager extends RelationManager
{
    protected static string $relationship = 'transactions';

    protected static ?string $title = 'Store Performance';

    protected static ?string $label = 'Store Performance';

    protected static ?string $pluralLabel = 'Store Performance';

    protected function getHeaderWidgets(): array
    {
        return [
            MerchantStats::class,
            ProductsAvailed::class,
            SalesChart::class,
        ];
    }

    public function getHeaderWidgetsColumns(): array
    {
        return [
            'md' => 2,
            'xl' => 3,
        ];
    }


}