diff --git a/app/controllers/resource_items_controller.rb b/app/controllers/resource_items_controller.rb
index 15e1398..6f20ca1 100644
--- a/app/controllers/resource_items_controller.rb
+++ b/app/controllers/resource_items_controller.rb
@@ -8,7 +8,7 @@ class ResourceItemsController < ApplicationController
   def index
     @resource_items = resource_class.where(project_id: @project.id)
       .includes(:category).references(:category)
-      .order("#{ResourceCategory.table_name}.name ASC, #{ResourceItem.table_name}.name ASC")
+      .sorted
   end
 
   def edit
@@ -44,9 +44,20 @@ def update
       resource_item_params, item: @resource_item, project: @project
     )
     if r.item_saved?
-      redirect_to_index
+      respond_to do |format|
+        format.html {
+          flash[:notice] = l(:notice_successful_update)
+          redirect_to_index
+        }
+        format.js { head 200 }
+      end
     else
-      render 'edit'
+      respond_to do |format|
+        format.html {
+          render 'edit'
+        }
+        format.js { head 422 }
+      end
     end
   end
 
@@ -78,7 +89,7 @@ def resource_class
 
   def resource_item_params
     if parameters = params[:human] || params[:asset]
-      parameters.permit :name, :category_id, :start_date, :end_date
+      parameters.permit :name, :category_id, :start_date, :end_date, :position
     end
   end
 
diff --git a/app/models/resource_item.rb b/app/models/resource_item.rb
index 216fe47..f3e0335 100644
--- a/app/models/resource_item.rb
+++ b/app/models/resource_item.rb
@@ -12,7 +12,8 @@ class ResourceItem < ActiveRecord::Base
   validates :start_date, :date => true
   validates :end_date, :date => true
 
-  scope :sorted, ->{ order name: :asc}
+  acts_as_positioned :scope => [:project_id, :type]
+  scope :sorted, ->{ order :position }
   scope :humans, ->{ where type: 'Human' }
   scope :assets, ->{ where type: 'Asset' }
   scope :filter_by_date, ->(date = Date.today){
diff --git a/app/views/asset_resource_items/index.html.erb b/app/views/asset_resource_items/index.html.erb
index 5b4d1b2..ad3047a 100644
--- a/app/views/asset_resource_items/index.html.erb
+++ b/app/views/asset_resource_items/index.html.erb
@@ -29,7 +29,10 @@
           <td class="name"><%= link_to i.name, edit_project_asset_resource_item_path(@project, i) %></td>
           <td class="date"><%= format_date(i.start_date) %></td>
           <td class="date"><%= format_date(i.end_date) %></td>
-          <td><%= delete_link project_asset_resource_item_path(@project, i) %></td>
+          <td class="buttons">
+            <%= reorder_handle(i, url: project_asset_resource_item_path(@project, i)) %>
+            <%= delete_link project_asset_resource_item_path(@project, i) %>
+          </td>
         </tr>
       <% end %>
     </tbody>
@@ -38,3 +41,13 @@
   <p class="nodata"><%= l :label_no_data %></p>
 <% end %>
 
+<%= javascript_tag do %>
+  $(function() {
+    $("table.resource_items tbody").positionedItems({
+      scroll: false,
+      sort: function (event, ui) {
+        ui.helper.css({'top': ui.position.top + $(window).scrollTop() + 'px'});
+      },
+    });
+  });
+<% end %>
diff --git a/app/views/human_resource_items/index.html.erb b/app/views/human_resource_items/index.html.erb
index 34eb36a..a898570 100644
--- a/app/views/human_resource_items/index.html.erb
+++ b/app/views/human_resource_items/index.html.erb
@@ -29,7 +29,10 @@
           <td class="name"><%= link_to i.name, edit_project_human_resource_item_path(@project, i) %></td>
           <td class="date"><%= format_date(i.start_date) %></td>
           <td class="date"><%= format_date(i.end_date) %></td>
-          <td><%= delete_link project_human_resource_item_path(@project, i) %></td>
+          <td class="buttons">
+            <%= reorder_handle(i, url: project_human_resource_item_path(@project, i)) %>
+            <%= delete_link project_human_resource_item_path(@project, i) %>
+          </td>
         </tr>
       <% end %>
     </tbody>
@@ -38,3 +41,13 @@
   <p class="nodata"><%= l :label_no_data %></p>
 <% end %>
 
+<%= javascript_tag do %>
+  $(function() {
+    $("table.resource_items tbody").positionedItems({
+      scroll: false,
+      sort: function (event, ui) {
+        ui.helper.css({'top': ui.position.top + $(window).scrollTop() + 'px'});
+      },
+    });
+  });
+<% end %>
diff --git a/db/migrate/20210325123542_add_position_to_resource_items.rb b/db/migrate/20210325123542_add_position_to_resource_items.rb
new file mode 100644
index 0000000..cafdfdd
--- /dev/null
+++ b/db/migrate/20210325123542_add_position_to_resource_items.rb
@@ -0,0 +1,5 @@
+class AddPositionToResourceItems < ActiveRecord::Migration[5.2]
+  def change
+    add_column :resource_items, :position, :integer, default: 0
+  end
+end
diff --git a/lib/redmine_resource_manager/save_resource_item.rb b/lib/redmine_resource_manager/save_resource_item.rb
index 9ae217e..8e16db0 100644
--- a/lib/redmine_resource_manager/save_resource_item.rb
+++ b/lib/redmine_resource_manager/save_resource_item.rb
@@ -17,13 +17,15 @@ def initialize(params, resource_class: nil,
 
 
     def call
-      if category_id = @params[:category_id].presence
-        @item.category = @project.resource_categories.find category_id
-      end
+      # if category_id = @params[:category_id].presence
+      #   @item.category = @project.resource_categories.find category_id
+      # end
       @item.project = @project
-      @item.name = @params[:name]
-      @item.start_date = @params[:start_date]
-      @item.end_date = @params[:end_date]
+      @item.attributes = @params
+      # @item.name = @params[:name]
+      # @item.start_date = @params[:start_date]
+      # @item.end_date = @params[:end_date]
+      # @item.position = @params[:position]
 
       return Result.new item_saved: @item.save,
                         item: @item