diff --git a/README.md b/README.md
index 71668dc..9ec3065 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ Version history
 ### Version 0.1.2:
 TODO: 
  -/+ Possibility to add multiple surfaces with a kind of layer management utility.
- - Add GUI for surface manager instead per surface
+ + Add GUI for surface manager instead per surface
  + Ability to select and drag whole surfaces
  + Select / deselect surfaces
  - Example with video source. Maybe one example with different surfaces and sources.
diff --git a/example/src/ofApp.cpp b/example/src/ofApp.cpp
index 017e866..2ef4120 100644
--- a/example/src/ofApp.cpp
+++ b/example/src/ofApp.cpp
@@ -63,6 +63,7 @@ void ofApp::keyPressed(int key)
         case '2': gui.setMode(ofxGuiMode::TEXTURE_MAPPING); break;
         case '3': gui.setMode(ofxGuiMode::PROJECTION_MAPPING); break;
         case 'i': bShowInfo = !bShowInfo; break;
+        case 'r': addRandomSurface(); break;
         default: break;
     }
 }
@@ -83,4 +84,18 @@ void ofApp::mouseDragged(int x, int y, int button)
 {
     //
     //surfaceManager.mouseDragged(x, y, button);
+}
+
+void ofApp::addRandomSurface()
+{
+    int surfaceType = ofxSurfaceType::TRIANGLE_SURFACE;
+    vector<ofVec2f> vertices;
+    vertices.push_back( ofVec2f( ofRandomWidth(), ofRandomHeight() ) );
+    vertices.push_back( ofVec2f( ofRandomWidth(), ofRandomHeight() ) );
+    vertices.push_back( ofVec2f( ofRandomWidth(), ofRandomHeight() ) );
+    vector<ofVec2f> texCoords;
+    texCoords.push_back( ofVec2f( ofRandomuf(), ofRandomuf() ) );
+    texCoords.push_back( ofVec2f( ofRandomuf(), ofRandomuf() ) );
+    texCoords.push_back( ofVec2f( ofRandomuf(), ofRandomuf() ) );
+    surfaceManager.addSurface(surfaceType, vertices, texCoords);
 }
\ No newline at end of file
diff --git a/example/src/ofApp.h b/example/src/ofApp.h
index d79bd08..6851978 100644
--- a/example/src/ofApp.h
+++ b/example/src/ofApp.h
@@ -16,6 +16,8 @@ public:
 	void mouseReleased(int x, int y, int button);
 	void mouseDragged(int x, int y, int button);
     
+    void addRandomSurface();
+    
     ofImage image;
     ofxSurfaceManager surfaceManager;
     ofxSurfaceManagerGui gui;
diff --git a/src/ofxSurfaceManager.cpp b/src/ofxSurfaceManager.cpp
index beb087b..85dd28b 100644
--- a/src/ofxSurfaceManager.cpp
+++ b/src/ofxSurfaceManager.cpp
@@ -30,6 +30,62 @@ void ofxSurfaceManager::addSurface(int surfaceType)
     }
 }
 
+void ofxSurfaceManager::addSurface(int surfaceType, ofTexture* texturePtr)
+{
+    if ( surfaceType == ofxSurfaceType::TRIANGLE_SURFACE ) {
+        surfaces.push_back( new ofxTriangleSurface() );
+        surfaces.back()->setTexture(texturePtr);
+    } else {
+        throw std::runtime_error("Attempt to add non-existing surface type.");
+    }
+}
+
+void ofxSurfaceManager::addSurface(int surfaceType, vector<ofVec2f> vertices, vector<ofVec2f> texCoords)
+{
+    if ( surfaceType == ofxSurfaceType::TRIANGLE_SURFACE ) {
+        
+        if ( vertices.size() < 3 ) {
+            throw std::runtime_error("There must be 3 vertices for a triangle surface.");
+        } else if (texCoords.size() < 3) {
+            throw std::runtime_error("Thre must be 3 texture coordinates for a triangle surface.");
+        }
+        
+        surfaces.push_back( new ofxTriangleSurface() );
+        
+        for ( int i=0; i<3; i++ ) {
+            surfaces.back()->setVertex(i, vertices[i]);
+            surfaces.back()->setTexCoord(i, texCoords[i]);
+        }
+        
+    } else {
+        throw std::runtime_error("Attempt to add non-existing surface type.");
+    }
+
+}
+
+void ofxSurfaceManager::addSurface(int surfaceType, ofTexture* texturePtr, vector<ofVec2f> vertices, vector<ofVec2f> texCoords)
+{
+    if ( surfaceType == ofxSurfaceType::TRIANGLE_SURFACE ) {
+        
+        if ( vertices.size() < 3 ) {
+            throw std::runtime_error("There must be 3 vertices for a triangle surface.");
+        } else if (texCoords.size() < 3) {
+            throw std::runtime_error("Thre must be 3 texture coordinates for a triangle surface.");
+        }
+        
+        surfaces.push_back( new ofxTriangleSurface() );
+        surfaces.back()->setTexture(texturePtr);
+        
+        for ( int i=0; i<3; i++ ) {
+            surfaces.back()->setVertex(i, vertices[i]);
+            surfaces.back()->setTexCoord(i, texCoords[i]);
+        }
+        
+    } else {
+        throw std::runtime_error("Attempt to add non-existing surface type.");
+    }
+}
+
 ofxBaseSurface* ofxSurfaceManager::selectSurface(int index)
 {
     if ( index >= surfaces.size() ) {
diff --git a/src/ofxSurfaceManager.h b/src/ofxSurfaceManager.h
index cf43b1f..5f14354 100644
--- a/src/ofxSurfaceManager.h
+++ b/src/ofxSurfaceManager.h
@@ -15,6 +15,9 @@ public:
     
     void draw();
     void addSurface(int surfaceType);
+    void addSurface(int surfaceType, ofTexture* texturePtr);
+    void addSurface(int surfaceType, vector<ofVec2f> vertices, vector<ofVec2f> texCoords);
+    void addSurface(int surfaceType, ofTexture* texturePtr, vector<ofVec2f> vertices, vector<ofVec2f> texCoords);
     ofxBaseSurface* getSurface(int index);
     int size();
     ofxBaseSurface* selectSurface(int index);