diff --git a/public/css/admin-pages.css b/public/css/admin-pages.css
index a0a9c9cf..780e0303 100644
--- a/public/css/admin-pages.css
+++ b/public/css/admin-pages.css
@@ -42,4 +42,26 @@
 
 .box-profile:focus .overlay {
   opacity: 1;
+}
+
+
+/*syling select 2 from collaborators in the edit blade menu*/
+
+
+.select2-container--classic.select2-container--open .select2-dropdown{
+	height:30px;
+}
+.select2-container--classic .select2-results>.select2-results__options{
+	height:30px;
+}
+.select2-container--classic .select2-results__option--highlighted.select2-results__option--selectable{
+	background-color: #E4E4E4;
+	color: #333333;
+}
+.select2-container--classic .select2-results__option--highlighted.select2-results__option--selectable:hover{
+	background-color: #064c72;
+	color: #eee;
+}
+.select2-container--classic.select2-container--open .select2-dropdown{
+	border-color:#E4E4E4;
 }
\ No newline at end of file
diff --git a/public/grapheditor/styles/grapheditor.css b/public/grapheditor/styles/grapheditor.css
index 1024ce4a..741a1bbc 100644
--- a/public/grapheditor/styles/grapheditor.css
+++ b/public/grapheditor/styles/grapheditor.css
@@ -1888,3 +1888,24 @@ div.picker { z-index: 10007; }
 	margin:5px;
 }
 
+
+/*syling select 2 from collaborators in the edit blade menu*/
+
+
+.select2-container--classic.select2-container--open .select2-dropdown{
+	height:30px;
+}
+.select2-container--classic .select2-results>.select2-results__options{
+	height:30px;
+}
+.select2-container--classic .select2-results__option--highlighted.select2-results__option--selectable{
+	background-color: #E4E4E4;
+	color: #333333;
+}
+.select2-container--classic .select2-results__option--highlighted.select2-results__option--selectable:hover{
+	background-color: #064c72;
+	color: #eee;
+}
+.select2-container--classic.select2-container--open .select2-dropdown{
+	border-color:#E4E4E4;
+}
diff --git a/resources/lang/pt.json b/resources/lang/pt.json
index 1b21c133..ffef1632 100644
--- a/resources/lang/pt.json
+++ b/resources/lang/pt.json
@@ -463,8 +463,9 @@
     "This editor is in beta testing, bugs can happen. We are working to implement new features and fix bugs, if you have any problem please contact us through the help menu.": "Este editor está em teste beta, podem ocorrer bugs. Estamos trabalhando para implementar novos recursos e corrigir bugs, se você tiver algum problema entre em contato conosco através do menu de ajuda.",
     "Collaborators": "Colaboradores",
     "You": "Você",
-    "Insert usernames to share your ontology with other Onto4ALL users": "Insira nomes de usuário para compartilhar sua ontologia com outros usuários Onto4ALL",
-    "Insert usernames here": "Insira os nomes de usário aqui",
+    "Insert the email accounts to share your ontology with other Onto4ALL users": "Insira os emails para compartilhar sua ontologia com outros usuários Onto4ALL",
+    "Insert email accounts here": "Insira o email dos usuários aqui",
+    "Search for the users":"Digite os emails dos usuários",
     "Collaborators will be able to edit this ontology": "Os colaboradores poderão editar esta ontologia",
     "Report": "Relatório",
     "Last Updated Ontology": "Última ontologia atualizada",
@@ -490,6 +491,8 @@
     "General Information": "Informações Gerais",
     "Save the ontology first to see its IRI": "Salve a ontologia primeiro para poder ver o IRI",
     "Untitled Ontology": "Ontologia não nomeada",
+
+    "Currently, the Onto4ALL team is composed of 8 people:":"Atualmente, o time é composto por 8 pessoas:",
     "Chat with other collaborators of this ontology, messages are saved and can be read at any time between collaborators.": "Converse com outros colaboradores dessa ontologia, as mensagens são salvas e podem ser lidas a qualquer momento entre os colaboradores.",
     "Enter message...": "Digite a mensagem..."
 }
diff --git a/resources/views/index.blade.php b/resources/views/index.blade.php
index ac198d59..1008b694 100644
--- a/resources/views/index.blade.php
+++ b/resources/views/index.blade.php
@@ -109,7 +109,7 @@
             <div class="direct-chat-msg"></div>
         </div>
 
-        <div class="box-footer" style="">
+        <div class="box-footer">
             <form action="#" method="post" id='form_send_msg' autocomplete="off">
                 <div class="input-group">
                     <input type="text" name="message" id='message' autocomplete="off" placeholder="{{__('Enter message...')}}." class="form-control" disabled>
@@ -613,13 +613,14 @@
                 </div>
                 <div class="form-group">
                     <label>{{__('Collaborators')}}</label>
-                    <span>- {{__('Insert usernames to share your ontology with other Onto4ALL users')}}</span> <strong style="color: #761c19">({{__('Collaborators will be able to edit this ontology')}})</strong>
-                    <select data-placeholder="{{__('Insert usernames here')}}" id="collaborators-select" style="width: 100%; " class="js-example-basic-multiple" name="collaborators[]" multiple="multiple">
+                    <span>- {{__('Insert the email accounts to share your ontology with other Onto4ALL users')}}</span> <strong style="color: #761c19">({{__('Collaborators will be able to edit this ontology')}})</strong>
+                    <select data-placeholder="{{__('Insert email accounts here')}}" id="collaborators-select" style="width: 100%;" class="js-example-basic-multiple" name="collaborators[]" multiple="multiple">
+                        <option disabled style="color:#761c19" value="Disabled">{{__('Search for the users')}}</option>
                         @foreach($users as $user)
                         @if($user->id == Auth::user()->id)
                         <option value="{{$user->id}}" selected="selected" locked="locked">{{__('You')}}</option>
                         @else
-                        <option value="{{$user->id}}">{{$user->name}}</option>
+                        <option value="{{$user->id}}">{{$user->email}}</option>
                         @endif
                         @endforeach
                     </select>
diff --git a/resources/views/ontologies/ontologies-edit.blade.php b/resources/views/ontologies/ontologies-edit.blade.php
index c529bda0..6627870d 100644
--- a/resources/views/ontologies/ontologies-edit.blade.php
+++ b/resources/views/ontologies/ontologies-edit.blade.php
@@ -159,8 +159,13 @@ class="form-control">
                 <div class="form-group">
                     <label>{{__('Collaborators')}}</label>
                     <select id="collaborators-select" class="js-example-basic-multiple" name="collaborators[]" multiple="multiple">
+                        <option disabled style="color:#761c19" value="Disabled">{{__('Search for the users')}}</option>
                         @foreach($users as $user)
-                            <option @foreach($ontology->users as $collaborator) @if($collaborator->id == $user->id)selected @endif @endforeach value="{{$user->id}}" data-image="/storage/img/profile/profile_default.png">{{$user->name}}</option>
+                        @if($user->id == Auth::user()->id)
+                        <option value="{{$user->id}}" selected="selected" locked="locked">{{__('You')}}</option>
+                        @else
+                            <option @foreach($ontology->users as $collaborator) @if($collaborator->id == $user->id)selected @endif @endforeach value="{{$user->id}}" data-image="/storage/img/profile/profile_default.png">{{$user->email}}</option>
+                        @endif
                         @endforeach
                     </select>
                 </div>
diff --git a/resources/views/tutorial.blade.php b/resources/views/tutorial.blade.php
index 8cc32f29..96b32529 100644
--- a/resources/views/tutorial.blade.php
+++ b/resources/views/tutorial.blade.php
@@ -548,6 +548,7 @@
                     <dd>{{__('Onto4All was developed by')}} <a href="https://github.com/Piazzi/">Lucas Piazzi</a>{{__(', as part of a Scientific Initiation project linked to the Computer Science Department of the Federal University of Juiz de Fora (UFJF), also composed of')}}
                         <a href="professorfabriciomendonca.com.br/">Dr Fabrício Martins Mendonça</a>{{__('(Project Advisor)')}},
                         <a href="https://github.com/carvalhotiago">Tiago Carvalho</a>,<a href="https://github.com/pedroalves4">Pedro Henrique Alves</a>.
+                        <dd>{{__('Currently, the Onto4ALL team is composed of 8 people:')}}
                     <div class="credits-section">
                         <table class="credits-table">
                             <tr>
@@ -557,10 +558,10 @@
                                 <td><img alt="Eduardo Felipe" src="{{asset('css/images/Landing-Page/Foto (4).png')}}"></td>
                             </tr>
                             <tr>
-                                <td>Fabrício<br>Mendonça</td>
-                                <td>Lucas<br>Piazzi</td>
-                                <td>Maurício<br>Almeida</td>
-                                <td>Eduardo<br>Feipe</td>
+                                <td><a href="https://www.linkedin.com/in/fabr%C3%ADcio-martins-mendon%C3%A7a-96a9a363/" target="_blank">Fabrício<br>Mendonça</a></td>
+                                <td><a href="https://www.linkedin.com/in/lucas-piazzi/" target="_blank" >Lucas<br>Piazzi</a></td>
+                                <td><a href="http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4736072J0&tokenCaptchar=03AGdBq25bgaGokp1PzAEdVTbO5iCQ_ejIXJQKBvhPuYqSLqIabmHgZlIud-EGU4onu_8Zsvhrcfg_ipOG8oU7WQctRjm7GcCJN0o2h4_Lr0H4nc8yWN-bpAdNMK1_P4VhyS4wxtiikTiPcRf7X2do-3oTwYchjh9Op2C8hNr9pEDpgFeo40Y9KjkSzZolLvQn3YU_xVIuFzT3b5h_6EJRrzw0w_UNDX3f2Whthk0eVUJ9SK_-A3QpmHrsqbSp1E1w655fkopURzkvM0PyltCPlZfacuGPSvMNDttiQZHG9aP3TEk0dnLY_8M3nDZad5oyzt8L1uVX62dlzMIEWvi9I04pTWdJbo3ZOcGbK_rrDyBtuY6NLvgzqia0-30xefOc1rVvPZPWH0mxcR6zdQbcHcbtufMjFVMfI427IcpxGijj6hXg42wZqpfZ2BiZ2jPsMgoPVjd0XcrnZpmHLqg5bIEh5lmagUbRpZX4BevqnQbOCYXrDyZmCrQNSlSr_NHh_LWyO-YY_K2JKoZmAMoI0IOKqO1BPCJkLg" target="_blank">Maurício<br>Almeida</a></td>
+                                <td><a href="http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4273313Y0&tokenCaptchar=03AGdBq25Qv2JKb1ZAQoxcXgvyyy-2BOeyQTk_K5XfIAsxDC2qKGXGfGHkgIZkNm5-y8JHpmMgInLZQRAHNcahyAmiSRHSzXk-HCEXxgjA9XPyCqrQj9BaCXVLC03OhwkhD5RmtmehObJs-VqxuDKJ5RB7Z80Agl6Xcj1QIVbMrS1Uu65I-J26DzmXrGjZR08dC-soqNMGpiOWs_ErNsUYLG9SdAJUoNNR3STVR0KMpcX0QVoE1VUurna9fqw7LDcxXnMGyzL4thQ3Dpn4J92O628fxwCoWWgZ-gz7K8XXtc1XtZOG7VOejQc0NubpuYZ3bbxpC-qoAdUHpdgw-soOuxAVXOchkEHAkdyvENXMMdcAh4wirrMeV0YmNJhUX0f9ZIGRkzq6Hn7RC78-31taBgqGqZy1IxlX_xtHD3YsEWtMY-792Za8ZqBYuWq9kpwoOKkg3ynZM56BniukseakG4KtIDgH-BaNu4h6UGjKnw0FI8lygeo-qWl72ZvL5SIezj2RGhNhENOQ3aK6OU0ZDjJrwOelA_NHcg" target="_blank">Eduardo<br>Felipe</a></td>
                             </tr>
                             <tr>
                                 <td><img alt="Jeanne Emygdio" src="{{asset('css/images/Landing-Page/Foto (5).png')}}"></td>
@@ -569,10 +570,10 @@
                                 <td><img alt="Vinicius Corbelli" src="{{asset('css/images/Landing-Page/Foto (8).png')}}"></td>
                             </tr>
                             <tr>
-                                <td>Jeanne<br>Emygdio</td>
-                                <td>Larissa<br>Fazza</td>
-                                <td>Guilherme<br>Noronha</td>
-                                <td>Vinicius<br>Corbelli</td>
+                                <td><a href="https://www.linkedin.com/in/jeannelouizeemygdio/" target="_blank">Jeanne<br>Emygdio</a></td>
+                                <td><a href="https://www.linkedin.com/in/larissa-rezende-fazza-8a9b28204/" target="_blank">Larissa<br>Fazza</a></td>
+                                <td><a href="https://www.linkedin.com/in/noronha2001/?locale=pt_BR" target="_blank">Guilherme<br>Noronha</a></td>
+                                <td><a href="https://www.linkedin.com/in/viniciuscorbelli/" target="_blank">Vinicius<br>Corbelli</a></td>
                             </tr>
                         </table>
                     </div>
diff --git a/resources/views/vendor/adminlte/page.blade.php b/resources/views/vendor/adminlte/page.blade.php
index 23c1ca5a..72a9b141 100644
--- a/resources/views/vendor/adminlte/page.blade.php
+++ b/resources/views/vendor/adminlte/page.blade.php
@@ -134,7 +134,7 @@
                                     <li class="user-body">
                                         <div class="row">
                                             <div class="col-xs-4 text-center border-right">
-                                                <a class="user-body-link" href="{{route('user.edit', ['user' => Auth::user()->id, 'locale' => app()->getLocale()])}}"> Tutorial</a>
+                                                <a class="user-body-link" href="{{route('tutorial', app()->getLocale())}}"> Tutorial</a>
                                             </div>
                                             <div class="col-xs-4 text-center border-right">
                                                 <a class="user-body-link" href="{{route('ontologies.index', app()->getLocale())}}">{{__('Ontologies')}}</a>