diff --git a/Gemfile.lock b/Gemfile.lock
index f1dbdf773ee78..92f3b806f7c8e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -509,6 +509,8 @@ GEM
     net-smtp (0.3.4)
       net-protocol
     nio4r (2.7.3)
+    nokogiri (1.16.7-arm64-darwin)
+      racc (~> 1.4)
     nokogiri (1.16.7-x86_64-linux)
       racc (~> 1.4)
     oauth (1.1.0)
@@ -798,6 +800,7 @@ GEM
     zeitwerk (2.6.18)
 
 PLATFORMS
+  arm64-darwin-23
   x86_64-linux
 
 DEPENDENCIES
diff --git a/decidim-admin/app/packs/stylesheets/decidim/admin/_table-list.scss b/decidim-admin/app/packs/stylesheets/decidim/admin/_table-list.scss
index 9685ca30ebcb9..35a01b1fbeb69 100644
--- a/decidim-admin/app/packs/stylesheets/decidim/admin/_table-list.scss
+++ b/decidim-admin/app/packs/stylesheets/decidim/admin/_table-list.scss
@@ -167,3 +167,7 @@
     @apply inline-block;
   }
 }
+
+.table-list__title-ellipsis {
+  @apply whitespace-nowrap overflow-hidden text-ellipsis max-w-[200px] sm:max-w-sm md:max-w-md lg:max-w-lg xl:max-w-2xl inline-block align-middle;
+}
diff --git a/decidim-assemblies/app/controllers/decidim/assemblies/admin/assemblies_controller.rb b/decidim-assemblies/app/controllers/decidim/assemblies/admin/assemblies_controller.rb
index d142ead2a9ea5..25647dd429829 100644
--- a/decidim-assemblies/app/controllers/decidim/assemblies/admin/assemblies_controller.rb
+++ b/decidim-assemblies/app/controllers/decidim/assemblies/admin/assemblies_controller.rb
@@ -9,7 +9,8 @@ class AssembliesController < Decidim::Assemblies::Admin::ApplicationController
         include Decidim::Assemblies::Admin::Filterable
         include Decidim::Admin::ParticipatorySpaceAdminContext
         include Decidim::Admin::HasTrashableResources
-        helper_method :current_assembly, :parent_assembly, :current_participatory_space
+
+        helper_method :current_assembly, :parent_assembly, :parent_assembly_id, :current_participatory_space
 
         layout "decidim/admin/assemblies"
 
@@ -31,7 +32,7 @@ def create
           CreateAssembly.call(@form) do
             on(:ok) do |assembly|
               flash[:notice] = I18n.t("assemblies.create.success", scope: "decidim.admin")
-              redirect_to assemblies_path(q: { parent_id_eq: assembly.parent_id })
+              redirect_to components_path(assembly)
             end
 
             on(:invalid) do
diff --git a/decidim-assemblies/app/controllers/decidim/assemblies/admin/assembly_copies_controller.rb b/decidim-assemblies/app/controllers/decidim/assemblies/admin/assembly_copies_controller.rb
index 7e93c4aefb749..943905dd1f3e1 100644
--- a/decidim-assemblies/app/controllers/decidim/assemblies/admin/assembly_copies_controller.rb
+++ b/decidim-assemblies/app/controllers/decidim/assemblies/admin/assembly_copies_controller.rb
@@ -20,7 +20,7 @@ def create
           CopyAssembly.call(@form, current_assembly, current_user) do
             on(:ok) do
               flash[:notice] = I18n.t("assemblies_copies.create.success", scope: "decidim.admin")
-              redirect_to assemblies_path(parent_id: current_assembly.parent_id)
+              redirect_to assemblies_path
             end
 
             on(:invalid) do
diff --git a/decidim-assemblies/app/helpers/decidim/assemblies/admin/assemblies_helper.rb b/decidim-assemblies/app/helpers/decidim/assemblies/admin/assemblies_helper.rb
index 4879173bfc46b..13f0580aed5a9 100644
--- a/decidim-assemblies/app/helpers/decidim/assemblies/admin/assemblies_helper.rb
+++ b/decidim-assemblies/app/helpers/decidim/assemblies/admin/assemblies_helper.rb
@@ -15,10 +15,32 @@ def processes_selected
           end
         end
 
-        # Public: A collection of Assemblies that can be selected as parent
-        # assemblies for another assembly; to be used in forms.
-        def parent_assemblies_for_select
-          @parent_assemblies_for_select ||= ParentAssembliesForSelect.for(current_organization, current_assembly)
+        # Public: select options representing a collection of Assemblies that
+        # can be selected as parent assemblies for another assembly; to be used in forms.
+        def parent_assemblies_options
+          options = []
+          root_assemblies = ParentAssembliesForSelect.for(current_organization, current_assembly).where(parent_id: nil).sort_by(&:weight)
+
+          root_assemblies.each do |assembly|
+            build_assembly_options(assembly, options)
+          end
+
+          options
+        end
+
+        private
+
+        # Recursively build the options for the assembly tree
+        def build_assembly_options(assembly, options, level = 0)
+          name = sanitize("#{"&nbsp;" * 4 * level} #{assembly.translated_title}")
+          options << [name, assembly.id]
+
+          # Skip the current assembly to avoid selecting a child as parent
+          return if assembly == current_assembly
+
+          assembly.children.each do |child|
+            build_assembly_options(child, options, level + 1)
+          end
         end
       end
     end
diff --git a/decidim-assemblies/app/packs/entrypoints/decidim_assemblies_admin_list.js b/decidim-assemblies/app/packs/entrypoints/decidim_assemblies_admin_list.js
new file mode 100644
index 0000000000000..f4bf48fe7f8b8
--- /dev/null
+++ b/decidim-assemblies/app/packs/entrypoints/decidim_assemblies_admin_list.js
@@ -0,0 +1 @@
+import "src/decidim/assemblies/admin/assemblies_list"
diff --git a/decidim-assemblies/app/packs/src/decidim/assemblies/admin/assemblies_list.js b/decidim-assemblies/app/packs/src/decidim/assemblies/admin/assemblies_list.js
new file mode 100644
index 0000000000000..321749a34d5f3
--- /dev/null
+++ b/decidim-assemblies/app/packs/src/decidim/assemblies/admin/assemblies_list.js
@@ -0,0 +1,72 @@
+/* eslint-disable require-jsdoc */
+
+class AdminAssembliesListComponent {
+  run() {
+    this.rebindArrows();
+  }
+
+  rebindArrows() {
+    this.unbindArrows();
+    this.bindArrows();
+  }
+
+  bindArrows() {
+    document.querySelectorAll("[data-arrow-up]").forEach((element) => {
+      element.addEventListener("click", this._onClickUpArrow);
+    });
+    document.querySelectorAll("[data-arrow-down]").forEach((element) => {
+      element.addEventListener("click", this._onClickDownArrow);
+    });
+  }
+
+  unbindArrows() {
+    document.querySelectorAll("[data-arrow-up]").forEach((element) => {
+      element.removeEventListener("click", this._onClickUpArrow);
+    });
+    document.querySelectorAll("[data-arrow-down]").forEach((element) => {
+      element.removeEventListener("click", this._onClickDownArrow);
+    });
+  }
+
+  _onClickDownArrow(event) {
+    event.preventDefault();
+
+    const target = event.currentTarget;
+    const assembly = target.closest("[data-assembly-id]");
+    const upArrow = assembly.querySelector("[data-arrow-up]");
+
+    target.classList.toggle("hidden");
+    upArrow.classList.toggle("hidden");
+  }
+
+  _onClickUpArrow(event) {
+    event.preventDefault();
+
+    const target = event.currentTarget;
+    const assembly = target.closest("[data-assembly-id]");
+    const parentLevel = assembly.dataset.level;
+    const downArrow = assembly.querySelector("[data-arrow-down]");
+
+    target.classList.toggle("hidden");
+    downArrow.classList.toggle("hidden");
+
+    // Get all following tr elements
+    let nextElement = assembly.nextElementSibling;
+    while (nextElement) {
+      const currentLevel = nextElement.dataset.level;
+      const nextSibling = nextElement.nextElementSibling;
+
+      if (currentLevel > parentLevel) {
+        nextElement.remove();
+      } else {
+        break;
+      }
+      nextElement = nextSibling;
+    }
+  }
+}
+
+window.Decidim.AdminAssembliesListComponent = AdminAssembliesListComponent;
+const component = new AdminAssembliesListComponent();
+
+component.run();
diff --git a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_assembly_row.html.erb b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_assembly_row.html.erb
index 90cf9f275f13a..70ed82442a5c6 100644
--- a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_assembly_row.html.erb
+++ b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_assembly_row.html.erb
@@ -1,15 +1,33 @@
-<tr>
-  <td>
+<tr data-assembly-id="<%= assembly.id %>" data-parent-id="<%= assembly.parent_id %>" data-level="<%= assembly.ancestors.count %>">
+  <td class="whitespace-nowrap">
+    <% if parent_assembly_id %>
+      <% [assembly.ancestors.count - 1, 0].max.times do |index| %>
+        <span class="px-3"></span>
+      <% end %>
+      <span class="px-3 text-xl text-secondary opacity-10">|</span>
+    <% end %>
+
     <% if assembly.promoted? %>
       <%= icon_with_tooltip "star-s-fill", t("models.assembly.fields.promoted", scope: "decidim.admin") %>
     <% end %>
 
-    <% if allowed_to? :update, :assembly, assembly: assembly %>
-      <%= link_to translated_attribute(assembly.title), edit_assembly_path(assembly) %>
-    <% elsif allowed_to? :read, :component, assembly: assembly %>
-      <%= link_to translated_attribute(assembly.title), components_path(assembly) %><br>
-    <% else %>
-      <%= translated_attribute(assembly.title) %>
+    <span class="table-list__title-ellipsis">
+      <% if allowed_to? :update, :assembly, assembly: assembly %>
+        <%= link_to translated_attribute(assembly.title), edit_assembly_path(assembly) %>
+      <% elsif allowed_to? :read, :component, assembly: assembly %>
+        <%= link_to translated_attribute(assembly.title), components_path(assembly) %><br>
+      <% else %>
+        <%= translated_attribute(assembly.title) %>
+      <% end %>
+    </span>
+
+    <% if assembly.children.count.positive? %>
+      <%= link_to url_for(query_params_with(parent_id_eq: assembly.id)), remote: true, data: { arrow_down: true } do %>
+        <%= icon "arrow-down-s-line", class: "w-4 h-4 ml-2" %>
+      <% end %>
+      <%= link_to "#", class: "hidden", data: { arrow_up: true } do %>
+        <%= icon "arrow-up-s-line", class: "w-4 h-4 ml-2" %>
+      <% end %>
     <% end %>
   </td>
   <td class="table-list__date">
@@ -47,14 +65,6 @@
       <% else %>
         <span class="action-space icon"></span>
       <% end %>
-      <% if assembly.children.count.positive? || allowed_to?(:read, :assembly, assembly:) %>
-        <%= icon_link_to "government-line",
-                         url_for(query_params_with(parent_id_eq: assembly.id)),
-                         t("decidim.admin.titles.assemblies"),
-                         class: "action-icon--dial #{"highlighted" if assembly.children.count.positive?}" %>
-      <% else %>
-        <span class="action-space icon"></span>
-      <% end %>
       <% if allowed_to? :copy, :assembly, assembly: assembly, assembly: parent_assembly %>
         <%= icon_link_to "file-copy-line", new_assembly_copy_path(assembly), t("actions.duplicate", scope: "decidim.admin"), class: "action-icon--copy" %>
       <% else %>
diff --git a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_form.html.erb b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_form.html.erb
index 30650f3b0e6c0..23af062e0e2b7 100644
--- a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_form.html.erb
+++ b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/_form.html.erb
@@ -224,12 +224,7 @@
       <% else %>
         <div class="row column">
           <%= form.select :parent_id,
-                          options_from_collection_for_select(
-                            parent_assemblies_for_select,
-                            :id,
-                            :translated_title,
-                            selected: current_assembly.try(:parent_id)
-                          ),
+                          parent_assemblies_options,
                           include_blank: t(".select_parent_assembly") %>
         </div>
       <% end %>
diff --git a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.html.erb b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.html.erb
index 3717ad8515e62..de5edb0f3f9a0 100644
--- a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.html.erb
+++ b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.html.erb
@@ -40,3 +40,5 @@
 
   <%= decidim_paginate @assemblies %>
 </div>
+
+<%= append_javascript_pack_tag "decidim_assemblies_admin_list" %>
diff --git a/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.js.erb b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.js.erb
new file mode 100644
index 0000000000000..fce1b92c9be03
--- /dev/null
+++ b/decidim-assemblies/app/views/decidim/assemblies/admin/assemblies/index.js.erb
@@ -0,0 +1,10 @@
+$('[data-assembly-id="<%= parent_assembly_id %>"]').after(
+  '<%= j(render partial: "decidim/assemblies/admin/assemblies/assembly_row",
+                collection: @assemblies,
+                as: :assembly,
+                locals: { view: :index }).strip.html_safe %>'
+);
+
+var component = new window.Decidim.AdminAssembliesListComponent();
+
+component.run();
diff --git a/decidim-assemblies/config/assets.rb b/decidim-assemblies/config/assets.rb
index 2a4c08f703996..3f0d945b05c8c 100644
--- a/decidim-assemblies/config/assets.rb
+++ b/decidim-assemblies/config/assets.rb
@@ -5,5 +5,6 @@
 Decidim::Webpacker.register_path("#{base_path}/app/packs")
 Decidim::Webpacker.register_entrypoints(
   decidim_assemblies: "#{base_path}/app/packs/entrypoints/decidim_assemblies.js",
-  decidim_assemblies_admin: "#{base_path}/app/packs/entrypoints/decidim_assemblies_admin.js"
+  decidim_assemblies_admin: "#{base_path}/app/packs/entrypoints/decidim_assemblies_admin.js",
+  decidim_assemblies_admin_list: "#{base_path}/app/packs/entrypoints/decidim_assemblies_admin_list.js"
 )
diff --git a/decidim-assemblies/config/locales/en.yml b/decidim-assemblies/config/locales/en.yml
index 4fea63424d5d8..8fc58d0964bc0 100644
--- a/decidim-assemblies/config/locales/en.yml
+++ b/decidim-assemblies/config/locales/en.yml
@@ -104,7 +104,7 @@ en:
       assemblies:
         create:
           error: There was a problem creating a new assembly.
-          success: Assembly created successfully.
+          success: Assembly created successfully. You can now add components and configure it.
         edit:
           update: Update
         index:
diff --git a/decidim-assemblies/spec/shared/manage_assemblies_examples.rb b/decidim-assemblies/spec/shared/manage_assemblies_examples.rb
index c68893ab06886..16cf616c161e8 100644
--- a/decidim-assemblies/spec/shared/manage_assemblies_examples.rb
+++ b/decidim-assemblies/spec/shared/manage_assemblies_examples.rb
@@ -204,8 +204,4 @@
       expect(page).to have_admin_callout("successfully")
     end
   end
-
-  it "shows the Assemblies link to manage nested assemblies" do
-    expect(page).to have_link("Assemblies", href: decidim_admin_assemblies.assemblies_path(q: { parent_id_eq: assembly.id }))
-  end
 end
diff --git a/decidim-assemblies/spec/system/admin/admin_manages_assemblies_spec.rb b/decidim-assemblies/spec/system/admin/admin_manages_assemblies_spec.rb
index 2ce717000a6be..2949307828454 100644
--- a/decidim-assemblies/spec/system/admin/admin_manages_assemblies_spec.rb
+++ b/decidim-assemblies/spec/system/admin/admin_manages_assemblies_spec.rb
@@ -98,8 +98,7 @@
       expect(last_assembly.taxonomies).to contain_exactly(taxonomy)
 
       within "[data-content]" do
-        expect(page).to have_current_path decidim_admin_assemblies.assemblies_path(q: { parent_id_eq: parent_assembly&.id })
-        expect(page).to have_content(translated(attributes[:title]))
+        expect(page).to have_current_path decidim_admin_assemblies.components_path(last_assembly)
       end
 
       visit decidim_admin.root_path
@@ -192,7 +191,7 @@ def assembly_without_type(type)
     end
   end
 
-  context "when managing child assemblies" do
+  context "when navigating child assemblies" do
     let!(:parent_assembly) { create(:assembly, organization:) }
     let!(:child_assembly) { create(:assembly, :with_content_blocks, organization:, parent: parent_assembly, blocks_manifests: [:announcement]) }
     let(:assembly) { child_assembly }
@@ -201,24 +200,23 @@ def assembly_without_type(type)
       switch_to_host(organization.host)
       login_as user, scope: :user
       visit decidim_admin_assemblies.assemblies_path
-      within "tr", text: translated(parent_assembly.title) do
-        click_on "Assemblies"
-      end
     end
 
-    it_behaves_like "manage assemblies"
-    it_behaves_like "creating an assembly"
-    it_behaves_like "manage assemblies announcements"
-
     describe "listing child assemblies" do
-      it_behaves_like "filtering collection by published/unpublished" do
-        let!(:published_space) { child_assembly }
-        let!(:unpublished_space) { create(:assembly, :unpublished, parent: parent_assembly, organization:) }
-      end
+      it "expands the parent assembly" do
+        expect(page).to have_no_content(translated(child_assembly.title))
+
+        within "tr", text: translated(parent_assembly.title) do
+          find("a[data-arrow-down]").click
+        end
+
+        expect(page).to have_content(translated(child_assembly.title))
+
+        within "tr", text: translated(parent_assembly.title) do
+          find("a[data-arrow-up]").click
+        end
 
-      it_behaves_like "filtering collection by private/public" do
-        let!(:public_space) { child_assembly }
-        let!(:private_space) { create(:assembly, :private, parent: parent_assembly, organization:) }
+        expect(page).to have_no_content(translated(child_assembly.title))
       end
     end
   end
diff --git a/decidim-assemblies/spec/system/admin/admin_manages_assemblies_with_parent_selector_spec.rb b/decidim-assemblies/spec/system/admin/admin_manages_assemblies_with_parent_selector_spec.rb
deleted file mode 100644
index a4b3991bd8223..0000000000000
--- a/decidim-assemblies/spec/system/admin/admin_manages_assemblies_with_parent_selector_spec.rb
+++ /dev/null
@@ -1,139 +0,0 @@
-# frozen_string_literal: true
-
-require "spec_helper"
-
-describe "Admin manages assemblies with parent selector" do
-  include_context "when admin administrating an assembly"
-
-  let(:image1_filename) { "city.jpeg" }
-  let(:image1_path) { Decidim::Dev.asset(image1_filename) }
-  let(:image2_filename) { "city2.jpeg" }
-  let(:image2_path) { Decidim::Dev.asset(image2_filename) }
-
-  before do
-    switch_to_host(organization.host)
-    login_as user, scope: :user
-    visit decidim_admin_assemblies.assemblies_path
-  end
-
-  context "when selecting a parent_assembly in the form" do
-    before do
-      click_on "New assembly"
-    end
-
-    it "creates a new assembly" do
-      within ".new_assembly" do
-        fill_in_i18n(
-          :assembly_title,
-          "#assembly-title-tabs",
-          en: "My assembly",
-          es: "Mi proceso participativo",
-          ca: "El meu procés participatiu"
-        )
-        fill_in_i18n(
-          :assembly_subtitle,
-          "#assembly-subtitle-tabs",
-          en: "Subtitle",
-          es: "Subtítulo",
-          ca: "Subtítol"
-        )
-        fill_in_i18n_editor(
-          :assembly_short_description,
-          "#assembly-short_description-tabs",
-          en: "Short description",
-          es: "Descripción corta",
-          ca: "Descripció curta"
-        )
-        fill_in_i18n_editor(
-          :assembly_description,
-          "#assembly-description-tabs",
-          en: "A longer description",
-          es: "Descripción más larga",
-          ca: "Descripció més llarga"
-        )
-
-        select assembly.title["en"], from: :assembly_parent_id
-
-        fill_in :assembly_slug, with: "slug"
-        fill_in :assembly_hashtag, with: "#hashtag"
-        fill_in :assembly_weight, with: 1
-      end
-
-      dynamically_attach_file(:assembly_hero_image, image1_path)
-      dynamically_attach_file(:assembly_banner_image, image2_path)
-
-      within ".new_assembly" do
-        find("*[type=submit]").click
-      end
-
-      expect(page).to have_admin_callout("successfully")
-
-      within "[data-content]" do
-        expect(page).to have_current_path decidim_admin_assemblies.assemblies_path(q: { parent_id_eq: assembly.id })
-        expect(page).to have_content("My assembly")
-      end
-    end
-  end
-
-  context "when managing child assemblies" do
-    let!(:child_assembly) { create(:assembly, organization:, parent: assembly) }
-
-    before do
-      within "tr", text: translated(assembly.title) do
-        click_on "Assemblies"
-      end
-      click_on "New assembly"
-    end
-
-    it "creates a new assembly" do
-      within ".new_assembly" do
-        fill_in_i18n(
-          :assembly_title,
-          "#assembly-title-tabs",
-          en: "My assembly",
-          es: "Mi proceso participativo",
-          ca: "El meu procés participatiu"
-        )
-        fill_in_i18n(
-          :assembly_subtitle,
-          "#assembly-subtitle-tabs",
-          en: "Subtitle",
-          es: "Subtítulo",
-          ca: "Subtítol"
-        )
-        fill_in_i18n_editor(
-          :assembly_short_description,
-          "#assembly-short_description-tabs",
-          en: "Short description",
-          es: "Descripción corta",
-          ca: "Descripció curta"
-        )
-        fill_in_i18n_editor(
-          :assembly_description,
-          "#assembly-description-tabs",
-          en: "A longer description",
-          es: "Descripción más larga",
-          ca: "Descripció més llarga"
-        )
-
-        fill_in :assembly_slug, with: "slug"
-        fill_in :assembly_hashtag, with: "#hashtag"
-        fill_in :assembly_weight, with: 1
-      end
-
-      dynamically_attach_file(:assembly_hero_image, image1_path)
-      dynamically_attach_file(:assembly_banner_image, image2_path)
-
-      within ".new_assembly" do
-        find("*[type=submit]").click
-      end
-
-      expect(page).to have_admin_callout("successfully")
-
-      within "[data-content]" do
-        expect(page).to have_current_path decidim_admin_assemblies.assemblies_path(q: { parent_id_eq: assembly.id })
-        expect(page).to have_content("My assembly")
-      end
-    end
-  end
-end
diff --git a/decidim-assemblies/spec/system/admin/assembly_admin_accesses_admin_sections_spec.rb b/decidim-assemblies/spec/system/admin/assembly_admin_accesses_admin_sections_spec.rb
index 6bf30b336c8ff..8e3bae38024cd 100644
--- a/decidim-assemblies/spec/system/admin/assembly_admin_accesses_admin_sections_spec.rb
+++ b/decidim-assemblies/spec/system/admin/assembly_admin_accesses_admin_sections_spec.rb
@@ -57,12 +57,7 @@
     let!(:child_assembly) { create(:assembly, parent: assembly, organization:, hashtag: "child") }
 
     before do
-      visit decidim_admin_assemblies.assemblies_path
-      within "tr", text: translated(assembly.title) do
-        click_on "Assemblies"
-      end
-
-      click_on "Configure"
+      visit decidim_admin_assemblies.edit_assembly_path(child_assembly)
     end
 
     context "when is a public assembly" do