I want define more than one template for my website and I can change it in setting page. What should I do ?
You can make more than one template like this. Below are the two layout files in layouts folder. app.php and admin.php you can use these like this.
app.php
@extends('layouts.app')
@section('content')
//your current file code
@endsection
admin.php
@extends('layouts.admin')
@section('content')
//your current file code
@endsection
Hope this will help you.