diff --git a/yms/ui/main.ui b/yms/ui/main.ui
index c99ecab..56b4ac0 100644
--- a/yms/ui/main.ui
+++ b/yms/ui/main.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.38.2 -->
+<!-- Generated with glade 3.40.0 -->
 <interface>
   <requires lib="gtk+" version="3.24"/>
   <object class="GtkWindow" id="wnd_main">
@@ -7,173 +7,251 @@
     <property name="title" translatable="yes">YMS</property>
     <signal name="destroy" handler="on_destroy" swapped="no"/>
     <child>
-      <object class="GtkBox">
+      <object class="GtkNotebook">
         <property name="visible">True</property>
-        <property name="can-focus">False</property>
+        <property name="can-focus">True</property>
+        <property name="tab-pos">left</property>
         <child>
-          <object class="GtkButtonBox">
+          <object class="GtkNotebook">
             <property name="visible">True</property>
-            <property name="can-focus">False</property>
-            <property name="orientation">vertical</property>
-            <property name="homogeneous">True</property>
-            <property name="layout-style">start</property>
+            <property name="can-focus">True</property>
             <child>
-              <object class="GtkButton" id="but_vessel">
-                <property name="label" translatable="yes">Vessel</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_company">
-                <property name="label" translatable="yes">Companies</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">1</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_equipment">
-                <property name="label" translatable="yes">Equipment</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">2</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_inventory">
-                <property name="label" translatable="yes">Inventory</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">3</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_provisions">
-                <property name="label" translatable="yes">Provisions</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">4</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_projects">
-                <property name="label" translatable="yes">Projects</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">5</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="but_documents">
-                <property name="label" translatable="yes">Documents</property>
-                <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">6</property>
-              </packing>
-            </child>
-          </object>
-          <packing>
-            <property name="expand">False</property>
-            <property name="fill">True</property>
-            <property name="position">0</property>
-          </packing>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="visible">True</property>
-            <property name="can-focus">False</property>
-            <property name="orientation">vertical</property>
-            <child>
-              <object class="GtkLabel" id="lbl_vessel">
+              <object class="GtkBox" id="box_vessel">
                 <property name="visible">True</property>
                 <property name="can-focus">False</property>
-                <property name="label" translatable="yes">empty</property>
+                <property name="orientation">vertical</property>
+                <child>
+                  <object class="GtkLabel" id="lbl_vessel">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="label" translatable="yes">empty</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkComboBox" id="cmb_vessel">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
+                <child>
+                  <!-- n-columns=2 n-rows=2 -->
+                  <object class="GtkGrid">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="visible">True</property>
+                        <property name="can-focus">False</property>
+                        <property name="label" translatable="yes">Name</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkEntry" id="ent_vesselname">
+                        <property name="visible">True</property>
+                        <property name="can-focus">True</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="visible">True</property>
+                        <property name="can-focus">False</property>
+                        <property name="label" translatable="yes">Model</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkEntry" id="ent_model">
+                        <property name="visible">True</property>
+                        <property name="can-focus">True</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">2</property>
+                  </packing>
+                </child>
+                <child>
+                  <placeholder/>
+                </child>
+              </object>
+            </child>
+            <child type="tab">
+              <object class="GtkLabel">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="label" translatable="yes">Vessel</property>
               </object>
               <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
-                <property name="position">0</property>
+                <property name="tab-fill">False</property>
               </packing>
             </child>
             <child>
-              <object class="GtkScrolledWindow">
+              <object class="GtkBox" id="box_lists">
                 <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="shadow-type">in</property>
+                <property name="can-focus">False</property>
+                <property name="orientation">vertical</property>
                 <child>
-                  <object class="GtkTreeView" id="tvw_user">
-                    <property name="visible">True</property>
-                    <property name="can-focus">True</property>
-                    <child internal-child="selection">
-                      <object class="GtkTreeSelection"/>
-                    </child>
-                  </object>
+                  <placeholder/>
+                </child>
+                <child>
+                  <placeholder/>
+                </child>
+                <child>
+                  <placeholder/>
                 </child>
               </object>
               <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
                 <property name="position">1</property>
               </packing>
             </child>
-            <child>
-              <object class="GtkButton" id="but_info">
-                <property name="label" translatable="yes">Ok</property>
+            <child type="tab">
+              <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-                <signal name="clicked" handler="on_but_info_clicked" swapped="no"/>
+                <property name="can-focus">False</property>
+                <property name="label" translatable="yes">Lists</property>
+              </object>
+              <packing>
+                <property name="position">1</property>
+                <property name="tab-fill">False</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkBox" id="box_user">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="orientation">vertical</property>
+                <child>
+                  <object class="GtkScrolledWindow">
+                    <property name="visible">True</property>
+                    <property name="can-focus">True</property>
+                    <property name="shadow-type">in</property>
+                    <child>
+                      <object class="GtkTreeView" id="tvw_user">
+                        <property name="visible">True</property>
+                        <property name="can-focus">True</property>
+                      </object>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <placeholder/>
+                </child>
+                <child>
+                  <object class="GtkButton" id="but_info">
+                    <property name="label" translatable="yes">Ok</property>
+                    <property name="visible">True</property>
+                    <property name="can-focus">True</property>
+                    <property name="receives-default">True</property>
+                    <signal name="clicked" handler="on_but_info_clicked" swapped="no"/>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">2</property>
+                  </packing>
+                </child>
               </object>
               <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
                 <property name="position">2</property>
               </packing>
             </child>
+            <child type="tab">
+              <object class="GtkLabel">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="label" translatable="yes">User</property>
+              </object>
+              <packing>
+                <property name="position">2</property>
+                <property name="tab-fill">False</property>
+              </packing>
+            </child>
+          </object>
+        </child>
+        <child type="tab">
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">Base data</property>
+          </object>
+          <packing>
+            <property name="tab-fill">False</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">label</property>
           </object>
           <packing>
-            <property name="expand">False</property>
-            <property name="fill">True</property>
             <property name="position">1</property>
           </packing>
         </child>
+        <child type="tab">
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">Equipment</property>
+          </object>
+          <packing>
+            <property name="position">1</property>
+            <property name="tab-fill">False</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">label</property>
+          </object>
+          <packing>
+            <property name="position">2</property>
+          </packing>
+        </child>
+        <child type="tab">
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">Inventory</property>
+          </object>
+          <packing>
+            <property name="position">2</property>
+            <property name="tab-fill">False</property>
+          </packing>
+        </child>
       </object>
     </child>
   </object>