this is my action to add new address on a step form , step form have 4 part that have a main Id for form , I want in the second tab add to new address and if method was success return to my view, but return to second tab , not first of view
these are my methods:

    [HttpPost]
    public  async Task<IActionResult> AddNewAddress(CartAddressViewModel model, int clientId)
    {
        var userId = User.GetCurrentUserId();

        var result = await _orderService.CreateNewContactInfoByClient(model, userId);

        switch (result)
        {

            case CreateCartAddressResult.NotFound:
                return RedirectToAction("NotFound", "Home");

            case CreateCartAddressResult.AddressIsExists:
                ModelState.AddModelError("Address", "This Address is registered Before");
                await GetStateAndDistricts();
                return RedirectToAction("ShowCart", "Home");



            case CreateCartAddressResult.Success:
                TempData[SuccessMessage] = "New Address Was Registered Successfully";
                await GetStateAndDistricts();
                return RedirectToAction("ShowCart", "Home");
        }

        await GetStateAndDistricts();



        return RedirectToAction("ShowCart", "Home");
    }

and this is main methd to show cart:

 [HttpGet("/UserPanel/ShowCart")]
 public async Task<IActionResult> ShowCart()
 {
     var text = await _siteService.GetSiteSettingForEdit();
     var tax = text.Tax;

     var userId = User.GetCurrentUserId();

     // Get From Session
     var cartItems = _siteService.GetFromSession();

     // Update ClientId In ShowCart after Login
     foreach (var item in cartItems)
     {
         if (item.ClientId == 0)
         {
             item.ClientId = userId;
         }
     }

     // Get user addresses
     var userAddresses = await _orderService.GetClientContactInfoById(userId);

     // we check it in repo and create a list:
     //    List<CartAddressViewModel> cartAddresses = new List<CartAddressViewModel>();
     //so we don't need to check if null, because in repo 100% create a list for it with object, but not null

     // Create CartViewModel
     var cartViewModel = new CartViewModel
     {
         Items = cartItems,
         Tax = tax,
         CartAddresses = userAddresses
     };

     await GetStateAndDistricts();

     return View(cartViewModel);
 }

How can I return to second tab of view of show cart?
this is part of view of showcart:

   <section id=" ">
       <form action="#">
           @if (Model.CartAddresses.Any())
           {
               foreach (var cartAddress in Model.CartAddresses)
               {
                   <div class="row mb-3">
                       <div class="col-lg-12">
                           <div class="input-group mb-3">
                               <div class="input-group-prepend">
                                   <div class="input-group-text">
                                       <input type="radio" checked="checked"  >
                                   </div>
                               </di