frontend FEATURE support creatin new top-level configuration data
diff --git a/frontend/config/tree.component.html b/frontend/config/tree.component.html
index b41c612..d6fe16b 100644
--- a/frontend/config/tree.component.html
+++ b/frontend/config/tree.component.html
@@ -1,4 +1,42 @@
-<div class="subtree" *ngIf="node['info']['config'] || activeSession.statusVisibility" [class.status]="!node['info']['config']">
+<div *ngIf="node['path'] == '/'">
+    <!-- recursion - show children -->
+    <div class="node">
+        <tree-indent [node]="node" [indentation]="indentation" [type]="'root'"
+            (onOpenCreatingDialog)="openCreatingDialog($event.element, $event.node, $event.parent)">
+        </tree-indent>
+    </div>
+    <div class="children" *ngIf="node['children'] || node['newChildren']">
+        <ng-container *ngFor="let child of node['children']">
+            <tree-view [node]="child" [root]="root"></tree-view>
+        </ng-container>
+        <ng-container *ngFor="let child of newChildrenToShow(node)">
+            <tree-view [node]="child" [root]="root"></tree-view>
+        </ng-container>
+    </div>
+
+    <!-- create new child dialog -->
+    <div id="{{node['path']}}_createChildDialog" class="node_edit" *ngIf="node['creatingChild']" [class.dialog]="node['schemaChildren']"
+        treeScrollTo [node]="node">
+        <ng-container *ngIf="node['schemaChildren'].length; else nothingToCreate">
+            <tree-indent [node]="node" [indentation]="indentation" [type]="'edit'"
+                (onCloseCreatingDialog)="closeCreatingDialog($event)"></tree-indent>
+            <select #nodeSelect (change)="creatingDialogSelect(node, $event.target.value, $event.currentTarget)">
+                <option disabled selected value="-1" style="display:none">&nbsp;</option>
+                <ng-container *ngFor="let schema of node['schemaChildren']; let i='index'">
+                    <option value="{{i}}">{{schemaInfoName(node, schema)}}</option>
+                </ng-container>
+            </select>
+            <!--  <pre>{{node['schemaChildren'] | json}}</pre> -->
+        </ng-container>
+        <ng-template #nothingToCreate>
+            <div class="msg-failure msg-rounded">
+                <span class="msg-close" (click)="closeCreatingDialog(node);">x</span>There is no element to create at {{node['path']}}.
+            </div>
+        </ng-template>
+    </div>
+</div>
+<div class="subtree" *ngIf="node['path'] != '/' && (node['info']['config'] || activeSession.statusVisibility)"
+    [class.status]="!node['info']['config']">
 
 	<div class="node" [class.dirty]="node['dirty']" [class.deleted]="node['deleted']">
 		<tree-indent [node]="node" [indentation]="indentation"
@@ -99,10 +137,10 @@
     </div>
     <div class="children" *ngIf="(node['children'] || node['newChildren']) && !node['deleted']">
         <ng-container *ngFor="let child of node['children']">
-            <tree-view [node]="child" [indentation]="inheritIndentation(node)"></tree-view>
+            <tree-view [node]="child" [root]="root" [indentation]="inheritIndentation(node)"></tree-view>
         </ng-container>
         <ng-container *ngFor="let child of newChildrenToShow(node)">
-            <tree-view [node]="child" [indentation]="inheritIndentation(node)"></tree-view>
+            <tree-view [node]="child" [root]="root" [indentation]="inheritIndentation(node)"></tree-view>
         </ng-container>
     </div>