diff --git a/docs/en/docs-nav.json b/docs/en/docs-nav.json
index 3ef62ff220..20ac261daa 100644
--- a/docs/en/docs-nav.json
+++ b/docs/en/docs-nav.json
@@ -57,6 +57,8 @@
         },
         {
           "text": "TODO Application",
+          "isLazyExpandable": true,
+          "path": "tutorials/todo",
           "items": [
             {
               "text": "Overview",
@@ -75,6 +77,8 @@
         },
         {
           "text": "Book Store Application",
+          "isLazyExpandable": true,
+          "path": "tutorials/book-store",
           "items": [
             {
               "text": "Overview",
@@ -155,6 +159,8 @@
         },        
         {
           "text": "Modular Monolith Application",
+          "isLazyExpandable": true,
+          "path": "tutorials/modular-crm/index.md",
           "items": [
             {
               "text": "Overview",
@@ -1893,7 +1899,170 @@
         },
         {
           "text": "Microservice Solution",
-          "path": "solution-templates/microservice"
+          "isLazyExpandable": true,
+          "path": "solution-templates/microservice",
+          "items":[
+            {
+              "text": "Overview",
+              "path": "solution-templates/microservice"
+            },
+            {
+              "text": "Solution Structure",
+              "path": "solution-templates/microservice/solution-structure.md"
+            },
+            {
+              "text": "Main Components",
+              "items": [
+                {
+                  "text": "Overview",
+                  "path": "solution-templates/microservice/main-components"
+                },
+                {
+                  "text": "Microservices",
+                  "path": "solution-templates/microservice/microservices.md"
+                },
+                {
+                  "text": "API Gateways",
+                  "path": "solution-templates/microservice/api-gateways.md"
+                },
+                {
+                  "text": "Web Applications",
+                  "path": "solution-templates/microservice/web-applications.md" 
+                },
+                {
+                  "text": "Mobile Applications",
+                  "path": "solution-templates/microservice/mobile-applications.md"
+                }
+              ]
+            },
+            {
+              "text": "Built-In Features",
+              "items": [
+                {
+                  "text": "Overview",
+                  "path": "solution-templates/microservice/built-in-features.md"
+                },
+                {
+                  "text": "Authentication",
+                  "path": "solution-templates/microservice/authentication.md"
+                },
+                {
+                  "text": "Database configurations",
+                  "path": "solution-templates/microservice/database-configurations.md"
+                },
+                {
+                  "text": "Logging (with Serilog and Elasticsearch)",
+                  "path": "solution-templates/microservice/logging.md"
+                },
+                {
+                  "text": "Monitoring (with Prometheus and Grafana)",
+                  "path": "solution-templates/microservice/monitoring.md"
+                },
+                {
+                  "text": "Swagger integration",
+                  "path": "solution-templates/microservice/swagger.md"
+                },
+                {
+                  "text": "Permission management",
+                  "path": "solution-templates/microservice/permission-management.md"
+                },
+                {
+                  "text": "Feature management",
+                  "path": "solution-templates/microservice/feature-management.md"
+                },
+                {
+                  "text": "Localization system",
+                  "path": "solution-templates/microservice/localization-system.md"
+                },
+                {
+                  "text": "Background Jobs",
+                  "path": "solution-templates/microservice/background-jobs.md"
+                },
+                {
+                  "text": "Background Workers",
+                  "path": "solution-templates/microservice/background-workers.md"
+                },
+                {
+                  "text": "Distributed Locking",
+                  "path": "solution-templates/microservice/distributed-locking.md"
+                },
+                {
+                  "text": "Distributed Cache",
+                  "path": "solution-templates/microservice/distributed-cache.md"
+                },
+                {
+                  "text": "Multi-Tenancy",
+                  "path": "solution-templates/microservice/multi-tenancy.md"
+                },
+                {
+                  "text": "BLOB Storing",
+                  "path": "solution-templates/microservice/blob-storing.md"
+                },
+                {
+                  "text": "CORS configuration",
+                  "path": "solution-templates/microservice/cors-configuration.md"
+                }
+              ]
+            },
+            {
+              "text": "Communication",
+              "items":[
+                {
+                  "text": "Overview",
+                  "path": "solution-templates/microservice/communication.md"
+                },
+                {
+                  "text": "HTTP API Calls",
+                  "path": "solution-templates/microservice/http-api-calls.md"
+                },
+                {
+                  "text": "gRPC Calls",
+                  "path": "solution-templates/microservice/grpc-calls.md"
+                },
+                {
+                  "text": "Distributed Events",
+                  "path": "solution-templates/microservice/distributed-events.md"
+                }
+              ]
+            },
+            {
+              "text": "Helm Charts and Kubernetes",
+              "path": "solution-templates/microservice/helm-charts-and-kubernetes.md"
+            },
+            {
+              "text": "Guides",
+              "items": [
+                {
+                  "text": "Overview",
+                  "path": "solution-templates/microservice/guides.md"
+                },
+                {
+                  "text": "Adding new microservices",
+                  "path": "solution-templates/microservice/adding-new-microservices.md"
+                },
+                {
+                  "text": "Adding new applications",
+                  "path": "solution-templates/microservice/adding-new-applications.md"
+                },
+                {
+                  "text": "Adding new API gateways",
+                  "path": "solution-templates/microservice/adding-new-api-gateways.md"
+                },
+                {
+                  "text": "Mono-repo vs multiple repository approaches",
+                  "path": "solution-templates/microservice/mono-repo-vs-multiple-repository-approaches.md"
+                },
+                {
+                  "text": "Authoring unit and integration tests",
+                  "path": "solution-templates/microservice/authoring-unit-and-integration-tests.md"
+                },
+                {
+                  "text": "How to use with ABP Suite",
+                  "path": "solution-templates/microservice/how-to-use-with-abp-suite.md"
+                }
+              ]
+            }
+          ]
         },
         {
           "text": "Application Module",
@@ -1981,6 +2150,8 @@
         },
         {
           "text": "IdentityServer",
+          "isLazyExpandable": true,
+          "path": "modules/identity-server.md",
           "items": [
             {
               "text": "Overview",
@@ -2003,6 +2174,8 @@
         },
         {
           "text": "OpenIddict",
+          "isLazyExpandable": true,
+          "path": "modules/openiddict.md",
           "items": [
             {
               "text": "Overview",
diff --git a/modules/docs/src/Volo.Docs.Domain.Shared/Volo/Docs/Documents/NavigationNode.cs b/modules/docs/src/Volo.Docs.Domain.Shared/Volo/Docs/Documents/NavigationNode.cs
index 231a8cddba..f19b9f41df 100644
--- a/modules/docs/src/Volo.Docs.Domain.Shared/Volo/Docs/Documents/NavigationNode.cs
+++ b/modules/docs/src/Volo.Docs.Domain.Shared/Volo/Docs/Documents/NavigationNode.cs
@@ -16,6 +16,9 @@ namespace Volo.Docs.Documents
         [JsonPropertyName("items")]
         public List<NavigationNode> Items { get; set; }
         
+        [JsonPropertyName("isLazyExpandable")]
+        public bool IsLazyExpandable { get; set; }
+        
         [JsonPropertyName("isIndex")]
         public bool IsIndex { get; set; }
 
diff --git a/modules/docs/src/Volo.Docs.Web/Areas/Documents/DocumentNavigationController.cs b/modules/docs/src/Volo.Docs.Web/Areas/Documents/DocumentNavigationController.cs
new file mode 100644
index 0000000000..cac52e8d5f
--- /dev/null
+++ b/modules/docs/src/Volo.Docs.Web/Areas/Documents/DocumentNavigationController.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Threading.Tasks;
+using Asp.Versioning;
+using Microsoft.AspNetCore.Mvc;
+using Volo.Abp;
+using Volo.Abp.AspNetCore.Mvc;
+using Volo.Docs.Areas.Models.DocumentNavigation;
+using Volo.Docs.Documents;
+using Volo.Docs.Utils;
+
+namespace Volo.Docs.Areas.Documents;
+
+[RemoteService(Name = DocsRemoteServiceConsts.RemoteServiceName)]
+[Area(DocsRemoteServiceConsts.ModuleName)]
+[ControllerName("DocumentNavigation")]
+[Route("/docs/document-navigation")]
+public class DocumentNavigationController : AbpController
+{
+    private readonly IDocumentAppService _documentAppService;
+    private readonly IDocsLinkGenerator _docsLinkGenerator;
+
+    public DocumentNavigationController(IDocumentAppService documentAppService, IDocsLinkGenerator docsLinkGenerator)
+    {
+        _documentAppService = documentAppService;
+        _docsLinkGenerator = docsLinkGenerator;
+    }
+
+    [HttpGet]
+    [Route("")]
+    public virtual async Task<NavigationNode> GetNavigationAsync(GetNavigationNodeWithLinkModel input)
+    {
+        var navigationNode = await _documentAppService.GetNavigationAsync(new GetNavigationDocumentInput
+        {
+            LanguageCode = input.LanguageCode,
+            Version = input.Version,
+            ProjectId = input.ProjectId
+        });
+        
+        NormalPath(navigationNode, input);
+        
+        return navigationNode;
+    }
+    
+    protected virtual void NormalPath(NavigationNode node, GetNavigationNodeWithLinkModel input)
+    {
+        if (node.HasChildItems)
+        {
+            foreach (var item in node.Items)
+            {
+                NormalPath(item, input);
+            }
+        }
+        
+        if (UrlHelper.IsExternalLink(node.Path))
+        {
+            return;
+        }
+        
+        node.Path = RemoveFileExtensionFromPath(node.Path, input.ProjectFormat);
+        if (node.Path.IsNullOrWhiteSpace())
+        {
+            node.Path = "javascript:;";
+            return;
+        }
+        
+        node.Path = _docsLinkGenerator.GenerateLink(input.ProjectName, input.LanguageCode, input.RouteVersion, node.Path);
+    }
+    
+    private string RemoveFileExtensionFromPath(string path, string projectFormat)
+    {
+        if (path == null)
+        {
+            return null;
+        }
+
+        return path.EndsWith("." + projectFormat)
+            ? path.Left(path.Length - projectFormat.Length - 1)
+            : path;
+    }
+}
\ No newline at end of file
diff --git a/modules/docs/src/Volo.Docs.Web/Areas/Documents/TagHelpers/TreeTagHelper.cs b/modules/docs/src/Volo.Docs.Web/Areas/Documents/TagHelpers/TreeTagHelper.cs
index 6d2cb8c9ba..e6c75d0161 100644
--- a/modules/docs/src/Volo.Docs.Web/Areas/Documents/TagHelpers/TreeTagHelper.cs
+++ b/modules/docs/src/Volo.Docs.Web/Areas/Documents/TagHelpers/TreeTagHelper.cs
@@ -72,11 +72,14 @@ namespace Volo.Docs.Areas.Documents.TagHelpers
 
             var isAnyNodeOpenedInThisLevel = IsAnyNodeOpenedInThisLevel(node);
 
-            node.Items?.ForEach(innerNode =>
+            if (!node.IsLazyExpandable || isAnyNodeOpenedInThisLevel)
             {
-                content += GetParentNode(innerNode, isAnyNodeOpenedInThisLevel);
-            });
-
+                node.Items?.ForEach(innerNode =>
+                {
+                    content += GetParentNode(innerNode, isAnyNodeOpenedInThisLevel);
+                });
+            }
+            
             var result = node.IsEmpty ? content : GetLeafNode(node, content);
 
             return result;
@@ -121,6 +124,11 @@ namespace Volo.Docs.Areas.Documents.TagHelpers
                 listItemCss += " selected-tree";
             }
 
+            if (node.IsLazyExpandable)
+            {
+                listItemCss += " lazy-expand";
+            }
+
             string listInnerItem;
             if (node.Path.IsNullOrEmpty() && node.IsLeaf)
             {
diff --git a/modules/docs/src/Volo.Docs.Web/Areas/Models/DocumentNavigation/GetNavigationNodeWithLinkModel.cs b/modules/docs/src/Volo.Docs.Web/Areas/Models/DocumentNavigation/GetNavigationNodeWithLinkModel.cs
new file mode 100644
index 0000000000..085cc2de0e
--- /dev/null
+++ b/modules/docs/src/Volo.Docs.Web/Areas/Models/DocumentNavigation/GetNavigationNodeWithLinkModel.cs
@@ -0,0 +1,28 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using Volo.Abp.Validation;
+using Volo.Docs.Language;
+using Volo.Docs.Projects;
+
+namespace Volo.Docs.Areas.Models.DocumentNavigation;
+
+public class GetNavigationNodeWithLinkModel
+{
+    public Guid ProjectId { get; set; }
+
+    [DynamicStringLength(typeof(ProjectConsts), nameof(ProjectConsts.MaxVersionNameLength))]
+    public string Version { get; set; }
+
+    [Required]
+    [DynamicStringLength(typeof(LanguageConsts), nameof(LanguageConsts.MaxLanguageCodeLength))]
+    public string LanguageCode { get; set; }
+    
+    [Required]
+    public string ProjectName { get; set; }
+    
+    [Required]
+    public string ProjectFormat { get; set; }
+    
+    [Required]
+    public string RouteVersion { get; set; }
+}
\ No newline at end of file
diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
index 976154c630..fb1f232cb3 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
@@ -53,6 +53,17 @@
 
     @if (Model.LoadSuccess)
     {
+        <script type="text/javascript">
+                var doc = doc || {};
+                doc.project = {
+                    id: '@Model.Project.Id',
+                    name: '@Model.Project.ShortName',
+                    languageCode: '@Model.LanguageCode',
+                    version: '@Model.Version',
+                    format: '@Model.Project.Format',
+                    routeVersion: '@(Model.LatestVersionInfo == null || Model.LatestVersionInfo.IsSelected ? DocsAppConsts.Latest : Model.Version)'
+                }
+        </script>
         <abp-script-bundle name="@typeof(IndexModel).FullName">
             <abp-script type="@typeof(MalihuCustomScrollbarPluginScriptBundleContributor)"/>
             <abp-script type="@typeof(ClipboardScriptBundleContributor)"/>
diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/index.js b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/index.js
index 41896bb2fd..0cfbdff32f 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/index.js
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/index.js
@@ -1,5 +1,76 @@
+var doc = doc || {};
+
 (function ($) {
     $(function () {        
+        
+        doc.lazyExpandableNavigation = {
+            isAllLoaded: false,
+            findNode : function(text, href, node){
+                if(node.text === text && node.path === href && node.isLazyExpandable){
+                    return node;
+                }
+                if(node.items){
+                    for (let i = 0; i < node.items.length; i++) {
+                        var result = doc.lazyExpandableNavigation.findNode(text, href, node.items[i]);
+                        if(result){
+                            return result;
+                        }
+                    }
+                }
+                return null;
+            },
+            renderNodeAsHtml : function($lazyLiElement, node, isRootLazyNode){
+                if(node.isEmpty){
+                    return;
+                }
+
+                var textCss = node.path === "javascript:;" ? "": "tree-toggle";
+                var uiCss = isRootLazyNode ? "" : "style='display: none;'";
+                var $ul =  $(`<ul class="nav nav-list tree" ${uiCss}></ul>`);
+                var $li = $(`<li class="${node.hasChildItems ? 'nav-header' : 'last-link'}"></li>`);
+                
+                $li.append(`<span class="plus-icon"> <i class="fa fa-${node.hasChildItems ? 'chevron-right' : node.path === "javascript:;" ? 'has-link' : 'no-link'}"></i></span><a href="${node.path}" class="${textCss}">${node.text}</a>`)
+
+                if(node.isLazyExpandable){
+                    $li.addClass("lazy-expand");
+                }else if(node.hasChildItems){
+                    node.items.forEach(function(item){
+                        doc.lazyExpandableNavigation.renderNodeAsHtml($li, item, false);
+                    });
+                }
+
+                $ul.append($li);
+                $lazyLiElement.append($ul)
+
+                window.Toc.helpers.initNavEvent();
+            },
+            loadAll : function(lazyLiElements){
+                if(doc.lazyExpandableNavigation.isAllLoaded){
+                    return;
+                }
+                for(var i = 0; i < lazyLiElements.length; i++){
+                    var $li = $(lazyLiElements[i]);
+                    if($li.has("ul").length === 0){
+                        var $a = $li.find("a");
+                        var node = doc.lazyExpandableNavigation.findNode($a.text(), $a.attr("href"), doc.project.navigation);
+                        node.items.forEach(item => {
+                            doc.lazyExpandableNavigation.renderNodeAsHtml($li, item, true);
+                        })
+                    }
+
+                    var childLazyLiElements = $li.find("li.lazy-expand");
+                    if(childLazyLiElements.length > 0){
+                        doc.lazyExpandableNavigation.isAllLoaded = false;
+                        doc.lazyExpandableNavigation.loadAll(childLazyLiElements);
+                    }
+
+                    initLazyExpandNavigation();
+                }
+                
+                doc.lazyExpandableNavigation.isAllLoaded = true;
+            }
+        }
+        
         var initNavigationFilter = function (navigationContainerId) {
             var $navigation = $('#' + navigationContainerId);
 
@@ -23,6 +94,8 @@
                     return;
                 }
 
+                doc.lazyExpandableNavigation.loadAll($navigation.find("li.lazy-expand"));
+                
                 var filteredItems = $navigation
                     .find('li > a')
                     .filter(function () {
@@ -98,6 +171,23 @@
             });
         };
 
+        var initDocProject = function(){
+            abp.ajax({
+                type :"GET",
+                url: '/docs/document-navigation',
+                data: {
+                    projectId: doc.project.id,
+                    version: doc.project.version,
+                    routeVersion: doc.project.routeVersion,
+                    languageCode: doc.project.languageCode,
+                    projectName: doc.project.name,
+                    projectFormat: doc.project.format
+                }
+            }).done(data => {
+                doc.project.navigation = data;
+            })
+        }
+
         var initSocialShareLinks = function () {
             var pageHeader = $('.docs-body').find('h1, h2').first().text();
 
@@ -272,6 +362,26 @@
             }
         };
         
+        var initLazyExpandNavigation = function(){
+            $("li .lazy-expand").off('click');
+            $("li .lazy-expand").on('click', function(){
+                var $this = $(this);
+                if($this.has("ul").length > 0){
+                    return;
+                }
+                
+                var $a = $this.find("a");
+                var node = doc.lazyExpandableNavigation.findNode($a.text(), $a.attr("href") , doc.project.navigation);
+                node.items.forEach(item => {
+                    doc.lazyExpandableNavigation.renderNodeAsHtml($this, item, true);
+                })
+
+                initLazyExpandNavigation();
+            });
+        }
+
+        initDocProject();
+        
         initNavigationFilter('sidebar-scroll');
 
         initAnchorTags('.docs-page .docs-body');
@@ -279,6 +389,8 @@
         initSocialShareLinks();
 
         initSections();
+
+        initLazyExpandNavigation();
         
         Element.prototype.querySelector = function (selector) {
             var result = $(this).find(decodeURI(selector));
diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Shared/Scripts/vs.js b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Shared/Scripts/vs.js
index 74767bf56b..5208ac99c0 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Shared/Scripts/vs.js
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Shared/Scripts/vs.js
@@ -1,23 +1,7 @@
 (function ($) {
     $(function () {
-        $('li:not(.last-link) a.tree-toggle').click(function () {
-            $(this).parent().children('ul.tree').toggle(100);
-            $(this).closest('li').toggleClass('selected-tree');
-        });
-
-        $('li:not(.last-link) span.plus-icon i.fa-chevron-right').click(
-            function () {
-                var $element = $(this).parent();
-                var $filter = $('.docs-version #filter');
 
-                if ($filter && $filter.val() != ''){
-                    return;
-                }
-
-                $element.parent().children('ul.tree').toggle(100);
-                $element.closest('li').toggleClass('selected-tree');
-            }
-        );
+        window.Toc.helpers.initNavEvent();
 
         var scrollTopBtn = $('.scroll-top-btn');
         var enoughHeight = $('.docs-sidebar-wrapper > .docs-top').height();
@@ -159,6 +143,30 @@
         $li.append($a);
         return $li;
     };
+    
+    window.Toc.helpers.initNavEvent = function () {
+        $('li:not(.last-link) a.tree-toggle').off('click');
+        $('li:not(.last-link) span.plus-icon i.fa-chevron-right').off('click');
+        
+        $('li:not(.last-link) a.tree-toggle').click(function () {
+            $(this).parent().children('ul.tree').toggle(100);
+            $(this).closest('li').toggleClass('selected-tree');
+        });
+
+        $('li:not(.last-link) span.plus-icon i.fa-chevron-right').click(
+            function () {
+                var $element = $(this).parent();
+                var $filter = $('.docs-version #filter');
+
+                if ($filter && $filter.val() != ''){
+                    return;
+                }
+
+                $element.parent().children('ul.tree').toggle(100);
+                $element.closest('li').toggleClass('selected-tree');
+            }
+        );
+    }
 
     function docsCriteria() {
         var docsContentWidth = $('.docs-content').width() - 74;