diff --git a/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html b/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html
index 0a41490545a..a9c79b99896 100644
--- a/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html
+++ b/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html
@@ -50,6 +50,22 @@
     ></textarea>
   </mat-form-field>
 </div>
+<div>
+  <label id="navigation-type-label" i18n>Navigation mode:</label>
+  <mat-radio-group
+    aria-labelledby="navigation-type-label"
+    [(ngModel)]="navigationType"
+    (ngModelChange)="updateNavigationType()"
+  >
+    <mat-radio-button color="primary" value="default" i18n
+      >Default (lessons appear in a drop-down list)</mat-radio-button
+    >
+    <mat-radio-button color="primary" value="tab" i18n
+      >Tabbed (lessons appear as tabs)
+    </mat-radio-button>
+  </mat-radio-group>
+</div>
+<!--
 <div fxLayout="row wrap" fxLayoutGap="8px" fxLayoutAlign="start center">
   <mat-form-field style="width: 400px; max-width: 100%">
     <mat-label i18n>Script Filename</mat-label>
@@ -67,6 +83,7 @@
     <mat-icon>attach_file</mat-icon>
   </button>
 </div>
+-->
 <div fxLayout="row wrap" fxLayoutGap="8px" fxLayoutAlign="start center">
   <mat-form-field style="width: 400px; max-width: 100%">
     <mat-label i18n>Unit URL</mat-label>
diff --git a/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.ts b/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.ts
index f79e1a3bdea..d9a9bf06cb7 100644
--- a/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.ts
+++ b/src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.ts
@@ -14,6 +14,7 @@ import { filter } from 'rxjs/operators';
 })
 export class AdvancedProjectAuthoringComponent {
   protected jsonDisplayed: boolean;
+  protected navigationType: string = 'default';
   private projectId: number;
   protected projectJSONString: string;
   protected projectScriptFilename: string;
@@ -131,4 +132,9 @@ export class AdvancedProjectAuthoringComponent {
     }
     this.projectService.saveProject();
   }
+
+  protected updateNavigationType(): void {
+    this.projectService.project.theme = this.navigationType;
+    this.projectService.saveProject();
+  }
 }
diff --git a/src/messages.xlf b/src/messages.xlf
index 28675d142fd..7dbc97cfea6 100644
--- a/src/messages.xlf
+++ b/src/messages.xlf
@@ -941,7 +941,7 @@ Click &quot;Cancel&quot; to keep the invalid JSON open so you can fix it.</sourc
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.ts</context>
-          <context context-type="linenumber">55</context>
+          <context context-type="linenumber">56</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2af3e40232b763ae8a6cba9f4bb455ed49d4f86c" datatype="html">
@@ -9895,39 +9895,46 @@ Click &quot;Cancel&quot; to keep the invalid JSON open so you can fix it.</sourc
           <context context-type="linenumber">49</context>
         </context-group>
       </trans-unit>
-      <trans-unit id="9203b05eb7515e937cc5e5d8cbc8a03195bb2d7f" datatype="html">
-        <source>Script Filename</source>
+      <trans-unit id="aa3959bc16313e8798209b3aaee7985fc6a246a2" datatype="html">
+        <source>Navigation mode:</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
-          <context context-type="linenumber">55</context>
+          <context context-type="linenumber">54</context>
         </context-group>
       </trans-unit>
-      <trans-unit id="9fabdfadf0453602acf388171bd4f758df47e1a7" datatype="html">
-        <source>Choose</source>
+      <trans-unit id="c1628a55788dfc4796fdfe902f88f0ecf241be28" datatype="html">
+        <source>Default (lessons appear in a drop-down list)</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
-          <context context-type="linenumber">62</context>
+          <context context-type="linenumber">61</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="73b8427966dc9a8002217c4719c54677b9cd1bcc" datatype="html">
+        <source>Tabbed (lessons appear as tabs) </source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
+          <context context-type="linenumber">64,65</context>
         </context-group>
       </trans-unit>
       <trans-unit id="0435f6f300b78e13d48ecd2ee6e404d40df04188" datatype="html">
         <source>Unit URL</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
-          <context context-type="linenumber">72</context>
+          <context context-type="linenumber">89</context>
         </context-group>
       </trans-unit>
       <trans-unit id="3eb7b66b266bf315436e1888846133dd8106ca43" datatype="html">
         <source>Copy Unit URL to Clipboard</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
-          <context context-type="linenumber">79</context>
+          <context context-type="linenumber">96</context>
         </context-group>
       </trans-unit>
       <trans-unit id="29024835e83ded5ae9cb4e4be0c3fba290a185b9" datatype="html">
         <source>Open Unit URL in New Tab</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/assets/wise5/authoringTool/advanced/advanced-project-authoring.component.html</context>
-          <context context-type="linenumber">90</context>
+          <context context-type="linenumber">107</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2584586546524894002" datatype="html">