diff --git a/ImGuiToolkit.cpp b/ImGuiToolkit.cpp
index 311d6b9..36fdaab 100644
--- a/ImGuiToolkit.cpp
+++ b/ImGuiToolkit.cpp
@@ -1677,22 +1677,47 @@ void word_wrap(std::string *str, unsigned per_line)
 }
 
 
-struct InputTextCallback_UserData
+void wrap(std::string *text, size_t per_line)
 {
-    std::string*      Str;
-    int               WordWrap;
-};
+    size_t line_begin = 0;
+
+    while (line_begin < text->size())
+    {
+        const size_t ideal_end = line_begin + per_line ;
+        size_t line_end = ideal_end <= text->size() ? ideal_end : text->size()-1;
+
+        if (line_end == text->size() - 1)
+            ++line_end;
+        else if (std::isspace(text->at(line_end)))
+        {
+            text->replace(line_end, 1, 1, '\n');
+            ++line_end;
+        }
+        else    // backtrack
+        {
+            size_t end = line_end;
+            while ( end > line_begin && !std::isspace(text->at(end)))
+                --end;
+
+            if (end != line_begin)
+            {
+                line_end = end;
+                text->replace(line_end++, 1, 1, '\n');
+            }
+            else
+                text->insert(line_end++, 1, '\n');
+        }
+
+        line_begin = line_end;
+    }
+}
+
 
 static int InputTextCallback(ImGuiInputTextCallbackData* data)
 {
-    InputTextCallback_UserData* user_data = static_cast<InputTextCallback_UserData*>(data->UserData);
+    std::string* str = static_cast<std::string*>(data->UserData);
     if (data->EventFlag == ImGuiInputTextFlags_CallbackResize)
     {
-//        if (user_data->WordWrap > 1)
-//            word_wrap(user_data->Str, user_data->WordWrap );
-
-        // Resize string callback
-        std::string* str = user_data->Str;
         IM_ASSERT(data->Buf == str->c_str());
         str->resize(data->BufTextLen);
         data->Buf = (char*)str->c_str();
@@ -1704,24 +1729,20 @@ static int InputTextCallback(ImGuiInputTextCallbackData* data)
 bool ImGuiToolkit::InputText(const char* label, std::string* str)
 {
     ImGuiInputTextFlags flags = ImGuiInputTextFlags_CallbackResize | ImGuiInputTextFlags_CharsNoBlank;
-    InputTextCallback_UserData cb_user_data;
-    cb_user_data.Str = str;
 
-    return ImGui::InputText(label, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, &cb_user_data);
+    return ImGui::InputText(label, (char*)str->c_str(), str->capacity() + 1, flags, InputTextCallback, str);
 }
 
-bool ImGuiToolkit::InputTextMultiline(const char* label, std::string* str, const ImVec2& size, int linesize)
+bool ImGuiToolkit::InputTextMultiline(const char* label, std::string* str, const ImVec2& size)
 {
     ImGuiInputTextFlags flags = ImGuiInputTextFlags_CallbackResize;
-    InputTextCallback_UserData cb_user_data;
-    cb_user_data.Str = str;
-    cb_user_data.WordWrap = linesize;
 
-    return ImGui::InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, &cb_user_data);
+    ImGui::InputTextMultiline(label, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, str);
+
+    return ImGui::IsItemDeactivatedAfterEdit();
 }
 
-
-void ImGuiToolkit::ShowTextMultiline(const char* label, const std::string &str, float width)
+void ImGuiToolkit::TextMultiline(const char* label, const std::string &str, float width)
 {
     size_t numlines = std::count(str.begin(), str.end(), '\n') + 1;
 
@@ -1731,5 +1752,46 @@ void ImGuiToolkit::ShowTextMultiline(const char* label, const std::string &str,
     ImGui::PushStyleColor(ImGuiCol_FrameBg, g.Style.Colors[ImGuiCol_FrameBgHovered]);
     ImGui::InputTextMultiline(label, (char*)str.c_str(), str.capacity() + 1, size, ImGuiInputTextFlags_ReadOnly);
     ImGui::PopStyleColor();
-
+}
+
+
+bool ImGuiToolkit::InputCodeMultiline(const char* label, std::string* str, const ImVec2& size)
+{
+    bool ret = false;
+    char hiddenlabel[256];
+    sprintf(hiddenlabel, "##%s", label);
+
+    ImGuiToolkit::PushFont(FONT_MONO);
+    static ImVec2 onechar = ImGui::CalcTextSize("C");
+
+    // prepare input multiline
+    ImGuiInputTextFlags flags = ImGuiInputTextFlags_CallbackResize | ImGuiInputTextFlags_CtrlEnterForNewLine;
+
+    // Input text into std::string with callback
+    ImGui::InputTextMultiline(hiddenlabel, (char*)str->c_str(), str->capacity() + 1, size, flags, InputTextCallback, str);
+    if (ImGui::IsItemDeactivatedAfterEdit() ){
+        wrap(str, (size_t) ceil(size.x / onechar.x) - 1);
+        ret = true;
+    }
+
+    ImGui::PopFont();
+
+    // show label
+    ImGui::SameLine();
+    ImGui::Text(label);
+
+    return ret;
+}
+
+void ImGuiToolkit::CodeMultiline(const char* label, const std::string &str, float width)
+{
+    char hiddenlabel[256];
+    sprintf(hiddenlabel, "##%s", label);
+
+    ImGuiToolkit::PushFont(FONT_MONO);
+    ImGuiToolkit::TextMultiline(hiddenlabel, str, width);
+    ImGui::PopFont();
+
+    ImGui::SameLine();
+    ImGui::Text(label);
 }
diff --git a/ImGuiToolkit.h b/ImGuiToolkit.h
index 47edd3d..695186a 100644
--- a/ImGuiToolkit.h
+++ b/ImGuiToolkit.h
@@ -68,8 +68,11 @@ namespace ImGuiToolkit
 
     // text input
     bool InputText(const char* label, std::string* str);
-    bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0), int linesize = 0);
-    void ShowTextMultiline(const char* label, const std::string &str, float width);
+    bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0));
+    void TextMultiline(const char* label, const std::string &str, float width);
+
+    bool InputCodeMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0));
+    void CodeMultiline(const char* label, const std::string &str, float width);
 
     // accent color of UI
     typedef enum {
diff --git a/ImGuiVisitor.cpp b/ImGuiVisitor.cpp
index 9848010..907608d 100644
--- a/ImGuiVisitor.cpp
+++ b/ImGuiVisitor.cpp
@@ -899,10 +899,8 @@ void ImGuiVisitor::visit (GenericStreamSource& s)
     }
 
     // display pipeline text
-    std::string pipelinetxt = BaseToolkit::wrapped( s.description(), 30);
-    ImGuiToolkit::ShowTextMultiline("##pipeline", pipelinetxt, w);
-    ImGui::SameLine(0, IMGUI_SAME_LINE);
-    ImGui::Text("Pipeline");
+    std::string pipelinetxt = BaseToolkit::wrapped( s.description(), 20);
+    ImGuiToolkit::CodeMultiline("Pipeline", pipelinetxt, w);
 
     //    // TODO allow editing pipeline
 
diff --git a/UserInterfaceManager.cpp b/UserInterfaceManager.cpp
index 043d42a..996aa33 100644
--- a/UserInterfaceManager.cpp
+++ b/UserInterfaceManager.cpp
@@ -3936,6 +3936,7 @@ void Navigator::clearButtonSelection()
     // clear new source pannel
     new_source_preview_.setSource();
     pattern_type = -1;
+    custom_pipeline = false;
     sourceSequenceFiles.clear();
     sourceMediaFileCurrent.clear();
     new_media_mode_changed = true;
@@ -4612,10 +4613,16 @@ void Navigator::RenderNewPannel()
             ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
             if (ImGui::BeginCombo("##Pattern", "Select generator"))
             {
+                if ( ImGui::Selectable("Custom") ) {
+                    update_new_source = true;
+                    custom_pipeline = true;
+                    pattern_type = -1;
+                }
                 for (int p = 0; p < (int) Pattern::count(); ++p){
                     if (Pattern::get(p).available && ImGui::Selectable( Pattern::get(p).label.c_str() )) {
-                        pattern_type = p;
                         update_new_source = true;
+                        custom_pipeline = false;
+                        pattern_type = p;
                     }
                 }
                 ImGui::EndCombo();
@@ -4625,25 +4632,42 @@ void Navigator::RenderNewPannel()
             ImGui::SameLine();
             ImGuiToolkit::HelpMarker("Create a source with graphics generated algorithmically.");
 
-            // resolution (if pattern selected)
-            if (pattern_type > 0) {
-                ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
-                if (ImGui::Combo("Ratio", &Settings::application.source.ratio,
-                                 GlmToolkit::aspect_ratio_names, IM_ARRAYSIZE(GlmToolkit::aspect_ratio_names) ) )
-                    update_new_source = true;
+            if (custom_pipeline) {
+                static std::string description = "videotestsrc pattern=smpte";
+                static ImVec2 fieldsize(ImGui::GetContentRegionAvail().x IMGUI_RIGHT_ALIGN, 100);
+
+                size_t numlines = std::count(description.begin(), description.end(), '\n') + 1;
+                fieldsize.y = MAX( 100, numlines * ImGui::GetTextLineHeightWithSpacing() );
+
+                if ( ImGuiToolkit::InputCodeMultiline("Pipeline", &description, fieldsize) )  {
 
-                ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
-                if (ImGui::Combo("Height", &Settings::application.source.res,
-                                 GlmToolkit::height_names, IM_ARRAYSIZE(GlmToolkit::height_names) ) )
                     update_new_source = true;
+                }
+
+                if (update_new_source) {
+                    new_source_preview_.setSource( Mixer::manager().createSourceStream(description), description.substr(0, description.find(" ")));
+                }
             }
+            // if pattern selected
+            else {
+                // resolution
+                if (pattern_type >= 0) {
+                    ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
+                    if (ImGui::Combo("Ratio", &Settings::application.source.ratio,
+                                     GlmToolkit::aspect_ratio_names, IM_ARRAYSIZE(GlmToolkit::aspect_ratio_names) ) )
+                        update_new_source = true;
 
-            // create preview
-            if (update_new_source)
-            {
-                glm::ivec2 res = GlmToolkit::resolutionFromDescription(Settings::application.source.ratio, Settings::application.source.res);
-                new_source_preview_.setSource( Mixer::manager().createSourcePattern(pattern_type, res),
-                                               Pattern::get(pattern_type).label);
+                    ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
+                    if (ImGui::Combo("Height", &Settings::application.source.res,
+                                     GlmToolkit::height_names, IM_ARRAYSIZE(GlmToolkit::height_names) ) )
+                        update_new_source = true;
+                }
+                // create preview
+                if (update_new_source) {
+                    glm::ivec2 res = GlmToolkit::resolutionFromDescription(Settings::application.source.ratio, Settings::application.source.res);
+                    new_source_preview_.setSource( Mixer::manager().createSourcePattern(pattern_type, res),
+                                                   Pattern::get(pattern_type).label);
+                }
             }
         }
         // External source creator
@@ -5820,8 +5844,8 @@ void ShowSandbox(bool* p_open)
     ImGui::Separator();
 
     static Source *tmp = nullptr;
-        static char buf1[1280] = "videotestsrc pattern=smpte ! queue ! videoconvert";
-//        static char buf1[1280] = "udpsrc port=5000 buffer-size=200000 ! h264parse ! avdec_h264";
+//        static char buf1[1280] = "videotestsrc pattern=smpte ! queue ! videoconvert";
+        static char buf1[1280] = "udpsrc port=5000 buffer-size=200000 ! h264parse ! avdec_h264";
 //    static char buf1[1280] = "srtsrc uri=\"srt://192.168.0.37:5000?mode=listener\" ! decodebin ";
     ImGui::InputText("gstreamer pipeline", buf1, 1280);
     if (ImGui::Button("Create Generic Stream Source") )
@@ -5841,6 +5865,18 @@ void ShowSandbox(bool* p_open)
     std::string tra = BaseToolkit::transliterate(std::string(str0));
     ImGui::Text("Transliteration: '%s'", tra.c_str());
 
+
+    ImGui::Separator();
+
+    static std::string description = "A long string can always be wrapped into many pieces";
+
+
+    if ( ImGuiToolkit::InputCodeMultiline("Wrapped", &description, ImVec2(ImGui::GetContentRegionAvail().x, 200)))  {
+
+    }
+
+    ImGui::Text(description.c_str());
+
     ImGui::End();
 }
 
diff --git a/UserInterfaceManager.h b/UserInterfaceManager.h
index aa07071..6318101 100644
--- a/UserInterfaceManager.h
+++ b/UserInterfaceManager.h
@@ -126,6 +126,7 @@ class Navigator
     bool view_pannel_visible;
     bool selected_button[NAV_COUNT];
     int  pattern_type;
+    bool custom_pipeline;
     void clearButtonSelection();
     void applyButtonSelection(int index);