diff --git a/readme.hints.md b/readme.hints.md
index 9eadb15..4222b83 100644
--- a/readme.hints.md
+++ b/readme.hints.md
@@ -58,6 +58,34 @@ Updated the WCC Dashboard UI components (properties and sidebar) to use shadcn-l
 - Grid layout with 1px gaps creating subtle dividers
 - Warning display with backdrop blur and rounded corners
 
+## Advanced Complex Properties Editor (2025-06-27)
+
+### Overview
+Implemented an advanced editor for complex properties (Arrays and Objects) that appears between the wcc-properties panel and frame when activated.
+
+### Features
+1. **Dynamic Layout**: Frame shrinks by 300px from bottom when editor opens
+2. **JSON Editor**: 
+   - Monospace font for code editing
+   - Tab key support for indentation
+   - Syntax validation with error messages
+   - Live preview of changes
+3. **Smooth Transitions**: Animated opening/closing with 0.3s ease
+4. **Error Handling**: Invalid JSON shows clear error messages that disappear on typing
+
+### Technical Implementation
+- **State Management**: Added showAdvancedEditor, editingProperty, editorValue, editorError states
+- **Event System**: Uses custom 'editorStateChanged' event to communicate with parent dashboard
+- **Dynamic Styling**: wcc-frame's bottom position changes from 100px to 400px when editor is open
+- **Property Types**: Object and Array properties show "Edit Object/Array" button instead of inline controls
+
+### User Flow
+1. Click "Edit Object/Array" button on complex property
+2. Editor slides up between properties panel and frame
+3. Edit JSON with live validation
+4. Save applies changes and refreshes properties, Cancel discards changes
+5. Frame automatically resizes back when editor closes
+
 ## Properties Panel Element Detection Issue (Fixed)
 
 ### Problem
diff --git a/ts_web/elements/wcc-dashboard.ts b/ts_web/elements/wcc-dashboard.ts
index 54a1abd..d805e8c 100644
--- a/ts_web/elements/wcc-dashboard.ts
+++ b/ts_web/elements/wcc-dashboard.ts
@@ -99,6 +99,13 @@ export class WccDashboard extends DeesElement {
         @selectedTheme=${(eventArg) => {
           this.selectedTheme = eventArg.detail;
         }}
+        @editorStateChanged=${async (eventArg) => {
+          const frame = await this.wccFrame;
+          if (frame) {
+            frame.advancedEditorOpen = eventArg.detail.isOpen;
+            frame.requestUpdate();
+          }
+        }}
       ></wcc-properties>
       <wcc-frame id="wccFrame" viewport=${this.selectedViewport}>
       </wcc-frame>
diff --git a/ts_web/elements/wcc-frame.ts b/ts_web/elements/wcc-frame.ts
index 43b2c2b..18bb0e5 100644
--- a/ts_web/elements/wcc-frame.ts
+++ b/ts_web/elements/wcc-frame.ts
@@ -13,6 +13,9 @@ export class WccFrame extends DeesElement {
   @property()
   public viewport: string;
 
+  @property({ type: Boolean })
+  public advancedEditorOpen: boolean = false;
+
   public static styles = [
     css`
       :host {
@@ -22,7 +25,6 @@ export class WccFrame extends DeesElement {
         left: 200px;
         right: 0px;
         top: 0px;
-        bottom: 100px;
         overflow-y: auto;
         overflow-x: auto;
         overscroll-behavior: contain;
@@ -41,6 +43,8 @@ export class WccFrame extends DeesElement {
     return html`
       <style>
         :host {
+          bottom: ${this.advancedEditorOpen ? '400px' : '100px'};
+          transition: bottom 0.3s ease;
           ${(() => {
           switch (this.viewport) {
             case 'desktop':
diff --git a/ts_web/elements/wcc-properties.ts b/ts_web/elements/wcc-properties.ts
index 09ea12d..888d98a 100644
--- a/ts_web/elements/wcc-properties.ts
+++ b/ts_web/elements/wcc-properties.ts
@@ -34,6 +34,20 @@ export class WccProperties extends DeesElement {
   @state()
   propertyContent: TemplateResult[] = [];
 
+  @state()
+  showAdvancedEditor: boolean = false;
+
+  @state()
+  editingProperty: { name: string; value: any; element: HTMLElement } = null;
+
+  @state()
+  editorValue: string = '';
+
+  @state()
+  editorError: string = '';
+
+  public editorHeight: number = 300;
+
   public render(): TemplateResult {
     return html`
       <style>
@@ -62,7 +76,7 @@ export class WccProperties extends DeesElement {
           box-sizing: border-box;
           position: absolute;
           left: 200px;
-          height: 100px;
+          height: ${this.showAdvancedEditor ? 100 + this.editorHeight : 100}px;
           bottom: 0px;
           right: 0px;
           overflow: hidden;
@@ -74,6 +88,10 @@ export class WccProperties extends DeesElement {
           grid-template-columns: 1fr 150px 300px 70px;
           height: 100%;
         }
+        
+        .main-content .grid {
+          height: 100px;
+        }
         .properties {
           background: transparent;
           overflow-y: auto;
@@ -149,6 +167,23 @@ export class WccProperties extends DeesElement {
           cursor: pointer;
           accent-color: var(--primary);
         }
+        
+        .properties .editor-button {
+          padding: 0.25rem 0.5rem;
+          background: var(--input);
+          border: 1px solid transparent;
+          border-radius: var(--radius-sm);
+          color: var(--foreground);
+          font-size: 0.7rem;
+          cursor: pointer;
+          transition: all 0.15s ease;
+          text-align: center;
+        }
+        
+        .properties .editor-button:hover {
+          border-color: var(--primary);
+          background: rgba(59, 130, 246, 0.1);
+        }
 
         .viewportSelector,
         .themeSelector {
@@ -254,75 +289,217 @@ export class WccProperties extends DeesElement {
           border: 1px solid var(--border);
           backdrop-filter: blur(8px);
         }
+
+        .advanced-editor {
+          position: absolute;
+          left: 0;
+          right: 0;
+          top: 0;
+          height: ${this.editorHeight}px;
+          background: var(--background);
+          border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+          display: flex;
+          flex-direction: column;
+          transition: all 0.3s ease;
+        }
+
+        .editor-header {
+          padding: 0.75rem 1rem;
+          background: rgba(59, 130, 246, 0.03);
+          border-bottom: 1px solid var(--border);
+          display: flex;
+          justify-content: space-between;
+          align-items: center;
+        }
+
+        .editor-title {
+          font-size: 0.875rem;
+          font-weight: 500;
+          color: var(--foreground);
+        }
+
+        .editor-actions {
+          display: flex;
+          gap: 0.5rem;
+        }
+
+        .editor-button {
+          padding: 0.375rem 0.75rem;
+          background: transparent;
+          border: 1px solid var(--border);
+          border-radius: var(--radius);
+          color: #999;
+          font-size: 0.75rem;
+          cursor: pointer;
+          transition: all 0.15s ease;
+        }
+
+        .editor-button:hover {
+          background: rgba(255, 255, 255, 0.05);
+          color: var(--foreground);
+        }
+
+        .editor-button.primary {
+          background: var(--primary);
+          color: var(--primary-foreground);
+          border-color: var(--primary);
+        }
+
+        .editor-button.primary:hover {
+          background: rgba(59, 130, 246, 0.8);
+        }
+
+        .editor-content {
+          flex: 1;
+          padding: 1rem;
+          overflow: auto;
+        }
+
+        .editor-textarea {
+          width: 100%;
+          height: 100%;
+          background: var(--input);
+          border: 1px solid var(--border);
+          border-radius: var(--radius);
+          color: var(--foreground);
+          font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
+          font-size: 0.875rem;
+          padding: 0.75rem;
+          resize: none;
+          outline: none;
+          transition: all 0.15s ease;
+        }
+
+        .editor-textarea:focus {
+          border-color: var(--primary);
+          background: rgba(59, 130, 246, 0.05);
+        }
+
+        .editor-error {
+          margin-top: 0.5rem;
+          padding: 0.5rem;
+          background: rgba(239, 68, 68, 0.1);
+          border: 1px solid rgba(239, 68, 68, 0.3);
+          border-radius: var(--radius-sm);
+          color: #f87171;
+          font-size: 0.75rem;
+        }
+
+        .main-content {
+          position: absolute;
+          left: 0;
+          right: 0;
+          bottom: 0;
+          height: 100px;
+          display: grid;
+          grid-template-columns: 1fr 150px 300px 70px;
+        }
       </style>
-      <div class="grid">
-        <div class="properties">
-          ${this.propertyContent}
-        </div>
-        <div class="themeSelector">
-          <div class="panelheading">Theme</div>
-          <div class="selectorButtons2">
-            <div
-              class="button ${this.selectedTheme === 'dark' ? 'selected' : null}"
-              @click=${() => {
-                this.selectTheme('dark');
-              }}
-            >
-              Dark<i class="material-symbols-outlined">brightness_3</i>
-            </div>
-            <div
-              class="button ${this.selectedTheme === 'bright' ? 'selected' : null}"
-              @click=${() => {
-                this.selectTheme('bright');
-              }}
-            >
-              Bright<i class="material-symbols-outlined">flare</i>
+      ${this.showAdvancedEditor ? html`
+        <div class="advanced-editor">
+          <div class="editor-header">
+            <div class="editor-title">Editing: ${this.editingProperty?.name}</div>
+            <div class="editor-actions">
+              <button class="editor-button" @click=${this.handleEditorCancel}>Cancel</button>
+              <button class="editor-button primary" @click=${this.handleEditorSave}>Save</button>
             </div>
           </div>
-        </div>
-        <div class="viewportSelector">
-          <div class="panelheading">Viewport</div>
-          <div class="selectorButtons4">
-            <div
-              class="button ${this.selectedViewport === 'phone' ? 'selected' : null}"
-              @click=${() => {
-                this.selectViewport('phone');
+          <div class="editor-content">
+            <textarea 
+              class="editor-textarea"
+              .value=${this.editorValue}
+              @input=${(e: InputEvent) => {
+                this.editorValue = (e.target as HTMLTextAreaElement).value;
+                this.editorError = '';
               }}
-            >
-              Phone<i class="material-symbols-outlined">smartphone</i>
-            </div>
-            <div
-              class="button ${this.selectedViewport === 'phablet' ? 'selected' : null}"
-              @click=${() => {
-                this.selectViewport('phablet');
+              @keydown=${(e: KeyboardEvent) => {
+                if (e.key === 'Tab') {
+                  e.preventDefault();
+                  const target = e.target as HTMLTextAreaElement;
+                  const start = target.selectionStart;
+                  const end = target.selectionEnd;
+                  const value = target.value;
+                  target.value = value.substring(0, start) + '  ' + value.substring(end);
+                  target.selectionStart = target.selectionEnd = start + 2;
+                }
               }}
-            >
-              Phablet<i class="material-symbols-outlined">smartphone</i>
-            </div>
-            <div
-              class="button ${this.selectedViewport === 'tablet' ? 'selected' : null}"
-              @click=${() => {
-                this.selectViewport('tablet');
-              }}
-            >
-              Tablet<i class="material-symbols-outlined">tablet</i>
-            </div>
-            <div
-              class="button ${this.selectedViewport === 'desktop' ||
-              this.selectedViewport === 'native'
-                ? 'selected'
-                : null}"
-              @click=${() => {
-                this.selectViewport('native');
-              }}
-            >
-              Desktop<i class="material-symbols-outlined">desktop_windows</i>
-            </div>
+            ></textarea>
+            ${this.editorError ? html`
+              <div class="editor-error">${this.editorError}</div>
+            ` : null}
           </div>
         </div>
-        <div class="docs">Docs</div>
+      ` : null}
+      <div class="main-content">
+        <div class="grid">
+          <div class="properties">
+            ${this.propertyContent}
+          </div>
+          <div class="themeSelector">
+            <div class="panelheading">Theme</div>
+            <div class="selectorButtons2">
+              <div
+                class="button ${this.selectedTheme === 'dark' ? 'selected' : null}"
+                @click=${() => {
+                  this.selectTheme('dark');
+                }}
+              >
+                Dark<i class="material-symbols-outlined">brightness_3</i>
+              </div>
+              <div
+                class="button ${this.selectedTheme === 'bright' ? 'selected' : null}"
+                @click=${() => {
+                  this.selectTheme('bright');
+                }}
+              >
+                Bright<i class="material-symbols-outlined">flare</i>
+              </div>
+            </div>
+          </div>
+          <div class="viewportSelector">
+            <div class="panelheading">Viewport</div>
+            <div class="selectorButtons4">
+              <div
+                class="button ${this.selectedViewport === 'phone' ? 'selected' : null}"
+                @click=${() => {
+                  this.selectViewport('phone');
+                }}
+              >
+                Phone<i class="material-symbols-outlined">smartphone</i>
+              </div>
+              <div
+                class="button ${this.selectedViewport === 'phablet' ? 'selected' : null}"
+                @click=${() => {
+                  this.selectViewport('phablet');
+                }}
+              >
+                Phablet<i class="material-symbols-outlined">smartphone</i>
+              </div>
+              <div
+                class="button ${this.selectedViewport === 'tablet' ? 'selected' : null}"
+                @click=${() => {
+                  this.selectViewport('tablet');
+                }}
+              >
+                Tablet<i class="material-symbols-outlined">tablet</i>
+              </div>
+              <div
+                class="button ${this.selectedViewport === 'desktop' ||
+                this.selectedViewport === 'native'
+                  ? 'selected'
+                  : null}"
+                @click=${() => {
+                  this.selectViewport('native');
+                }}
+              >
+                Desktop<i class="material-symbols-outlined">desktop_windows</i>
+              </div>
+            </div>
+          </div>
+          <div class="docs">Docs</div>
+        </div>
+        ${this.warning ? html`<div class="warning">${this.warning}</div>` : null}
       </div>
-      ${this.warning ? html`<div class="warning">${this.warning}</div>` : null}
     `;
   }
 
@@ -501,6 +678,17 @@ export class WccProperties extends DeesElement {
                         `;
                       })}
                     </select>`;
+                  case 'Object':
+                  case 'Array':
+                    return html`<button
+                      class="editor-button"
+                      style="width: 100%; margin-top: 0.25rem;"
+                      @click="${() => this.openAdvancedEditor(key, firstFoundInstantiatedElement[key], firstFoundInstantiatedElement)}"
+                    >
+                      Edit ${propertyTypeString}
+                    </button>`;
+                  default:
+                    return html`<div style="color: #666; font-size: 0.7rem;">Unsupported type</div>`;
                 }
               })()}
             </div>
@@ -552,4 +740,62 @@ export class WccProperties extends DeesElement {
     );
     this.dashboardRef.buildUrl();
   }
+
+  private openAdvancedEditor(propertyName: string, value: any, element: HTMLElement) {
+    this.editingProperty = {
+      name: propertyName,
+      value: value,
+      element: element
+    };
+    this.editorValue = JSON.stringify(value, null, 2);
+    this.editorError = '';
+    this.showAdvancedEditor = true;
+    
+    // Notify parent to resize frame
+    this.dispatchEvent(
+      new CustomEvent('editorStateChanged', {
+        detail: { isOpen: true },
+        bubbles: true
+      })
+    );
+  }
+
+  private handleEditorSave() {
+    try {
+      const parsedValue = JSON.parse(this.editorValue);
+      if (this.editingProperty) {
+        this.editingProperty.element[this.editingProperty.name] = parsedValue;
+        this.showAdvancedEditor = false;
+        this.editorError = '';
+        
+        // Notify parent to resize frame back
+        this.dispatchEvent(
+          new CustomEvent('editorStateChanged', {
+            detail: { isOpen: false },
+            bubbles: true
+          })
+        );
+        
+        // Refresh properties display
+        this.createProperties();
+      }
+    } catch (error) {
+      this.editorError = `Invalid JSON: ${error.message}`;
+    }
+  }
+
+  private handleEditorCancel() {
+    this.showAdvancedEditor = false;
+    this.editingProperty = null;
+    this.editorValue = '';
+    this.editorError = '';
+    
+    // Notify parent to resize frame back
+    this.dispatchEvent(
+      new CustomEvent('editorStateChanged', {
+        detail: { isOpen: false },
+        bubbles: true
+      })
+    );
+  }
 }