diff --git a/CMakeLists.txt b/CMakeLists.txt
index cafc9f6..616317b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,37 +76,37 @@ target_link_libraries(${AppExec} PRIVATE Qt6::Core Qt6::Widgets Qt6::SvgWidgets
 target_include_directories(${AppExec} PUBLIC src)
 
 # tests
-Include(FetchContent)
+# Include(FetchContent)
 
-FetchContent_Declare(
-  Catch2
-  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-  GIT_TAG        v3.8.1 # or a later release
-)
+# FetchContent_Declare(
+#   Catch2
+#   GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+#   GIT_TAG        v3.8.1 # or a later release
+# )
 
-FetchContent_MakeAvailable(Catch2)
+# FetchContent_MakeAvailable(Catch2)
 
-add_executable(${TestExec}
-    ${ENGINE_SOURCES}
-    tests/main-tests.cpp
-    tests/OperatorTests.cpp
-    tests/NetworkTests.cpp
-)
-target_link_libraries(${TestExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
-target_compile_definitions(${TestExec} PRIVATE UNIT_TEST)
-target_include_directories(${TestExec} PUBLIC
-    src
-    ${BOOST_INCLUDE_DIRS}
-)
+# add_executable(${TestExec}
+#     ${ENGINE_SOURCES}
+#     tests/main-tests.cpp
+#     tests/OperatorTests.cpp
+#     tests/NetworkTests.cpp
+# )
+# target_link_libraries(${TestExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
+# target_compile_definitions(${TestExec} PRIVATE UNIT_TEST)
+# target_include_directories(${TestExec} PUBLIC
+#     src
+#     ${BOOST_INCLUDE_DIRS}
+# )
 
-# benchmarks
-add_executable(${BenchExec}
-    ${ENGINE_SOURCES}
+# # benchmarks
+# add_executable(${BenchExec}
+#     ${ENGINE_SOURCES}
 
-    tests/Benchmarks.cpp
-)
-target_link_libraries(${BenchExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
-target_compile_definitions(${BenchExec} PRIVATE UNIT_TEST)
-target_include_directories(${BenchExec} PUBLIC src)
+#     tests/Benchmarks.cpp
+# )
+# target_link_libraries(${BenchExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
+# target_compile_definitions(${BenchExec} PRIVATE UNIT_TEST)
+# target_include_directories(${BenchExec} PUBLIC src)
 
-add_subdirectory(src/OpDefs)
+# add_subdirectory(src/OpDefs)
diff --git a/src/Engine/Network/NetworkManager.cpp b/src/Engine/Network/NetworkManager.cpp
index 058127d..1768f22 100644
--- a/src/Engine/Network/NetworkManager.cpp
+++ b/src/Engine/Network/NetworkManager.cpp
@@ -3,6 +3,7 @@
 #include "Engine/Operator/GeometryOperator.h"
 #include "Engine/Operator/Attribute.h"
 #include "Engine/Operator/AttributeHandle.h"
+#include "Engine/Operator/OpInfo.h"
 #include "Engine/Types.h"
 #include <iostream>
 #include <memory>
@@ -10,11 +11,11 @@
 #include <algorithm>
 #include <string>
 
-enzo::nt::OpId enzo::nt::NetworkManager::addOperator(nt::opConstructor ctorFunc)
+enzo::nt::OpId enzo::nt::NetworkManager::addOperator(op::OpInfo opInfo)
 {
 
     maxOpId_++;
-    gopStore_.emplace(maxOpId_, std::make_unique<GeometryOperator>(maxOpId_, ctorFunc));
+    gopStore_.emplace(maxOpId_, std::make_unique<GeometryOperator>(maxOpId_, opInfo));
     std::cout << "adding operator " << maxOpId_ << "\n";
 
     return maxOpId_;
diff --git a/src/Engine/Network/NetworkManager.h b/src/Engine/Network/NetworkManager.h
index 309743b..5ea01b1 100644
--- a/src/Engine/Network/NetworkManager.h
+++ b/src/Engine/Network/NetworkManager.h
@@ -18,7 +18,7 @@ public:
     static NetworkManager& getInstance();
 
     // functions
-    OpId addOperator(nt::opConstructor ctorFunc);
+    OpId addOperator(op::OpInfo opInfo);
     std::optional<OpId> getDisplayOp();
     bool isValidOp(nt::OpId opId);
     GeometryOperator& getGeoOperator(nt::OpId opId);
diff --git a/src/Engine/Operator/GeometryOperator.cpp b/src/Engine/Operator/GeometryOperator.cpp
index ad74635..ce0c313 100644
--- a/src/Engine/Operator/GeometryOperator.cpp
+++ b/src/Engine/Operator/GeometryOperator.cpp
@@ -23,8 +23,8 @@ void enzo::nt::connectOperators(enzo::nt::OpId inputOpId, unsigned int inputInde
     outputOp.addInputConnection(newConnection);
 }
 
-nt::GeometryOperator::GeometryOperator(enzo::nt::OpId opId, nt::opConstructor ctorFunc)
-: opId_{opId}, opDef_(ctorFunc(opId))
+nt::GeometryOperator::GeometryOperator(enzo::nt::OpId opId, op::OpInfo opinfo)
+: opId_{opId}, opDef_(opinfo.ctorFunc(opId))
 {
     // TODO: drive by geometry definition
     maxInputs_=4;
diff --git a/src/Engine/Operator/GeometryOperator.h b/src/Engine/Operator/GeometryOperator.h
index d5457d3..a5878cb 100644
--- a/src/Engine/Operator/GeometryOperator.h
+++ b/src/Engine/Operator/GeometryOperator.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "Engine/Operator/GeometryConnection.h"
+#include "Engine/Operator/OpInfo.h"
 #include "Engine/Operator/GeometryOpDef.h"
 #include "Engine/Types.h"
 #include <optional>
@@ -11,7 +12,7 @@ void connectOperators(enzo::nt::OpId inputOpId, unsigned int inputIndex, enzo::n
 class GeometryOperator
 {
 public:
-    GeometryOperator(enzo::nt::OpId opId, nt::opConstructor ctorFunc);
+    GeometryOperator(enzo::nt::OpId opId, op::OpInfo opinfo);
 
     // disable copying
     GeometryOperator(const GeometryOperator&)            = delete;
diff --git a/src/Engine/Operator/OpInfo.h b/src/Engine/Operator/OpInfo.h
new file mode 100644
index 0000000..aed01a4
--- /dev/null
+++ b/src/Engine/Operator/OpInfo.h
@@ -0,0 +1,15 @@
+#pragma once
+#include <string>
+#include "Engine/Operator/GeometryOpDef.h"
+#include "Engine/Parameter/Template.h"
+
+namespace enzo::op
+{
+struct OpInfo
+{
+    std::string internalName;
+    std::string displayName;
+    enzo::nt::opConstructor ctorFunc;
+    enzo::prm::Template* templates;
+};
+}
diff --git a/src/Engine/Operator/OperatorTable.cpp b/src/Engine/Operator/OperatorTable.cpp
index d4f8d8e..948eb5c 100644
--- a/src/Engine/Operator/OperatorTable.cpp
+++ b/src/Engine/Operator/OperatorTable.cpp
@@ -3,11 +3,18 @@
 
 #include <iostream>
 
-void enzo::op::OperatorTable::addOperator(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template templateList[])
+void enzo::op::OperatorTable::addOperator(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template* templates)
 {
     std::cout << "OPERATOR TABLE ADDED\n";
     std::cout << "adding operator: " << displayName << "\n";
-    opInfoStore_.push_back({internalName, displayName, ctorFunc});
+    enzo::op::OpInfo info {
+        internalName,
+        displayName,
+        ctorFunc,
+        templates
+    };
+
+    opInfoStore_.push_back(info);
 }
 
 enzo::nt::opConstructor enzo::op::OperatorTable::getOpConstructor(std::string name)
@@ -22,6 +29,18 @@ enzo::nt::opConstructor enzo::op::OperatorTable::getOpConstructor(std::string na
     return nullptr;
 }
 
+const std::optional<enzo::op::OpInfo> enzo::op::OperatorTable::getOpInfo(std::string name)
+{
+    for(auto it = opInfoStore_.begin(); it!=opInfoStore_.end(); ++it)
+    {
+        if(it->internalName==name)
+        {
+            return *it;
+        }
+    }
+    return std::nullopt;
+}
+
 std::vector<enzo::op::OpInfo> enzo::op::OperatorTable::getData()
 {
     return opInfoStore_;
diff --git a/src/Engine/Operator/OperatorTable.h b/src/Engine/Operator/OperatorTable.h
index b8f0cf2..a59655d 100644
--- a/src/Engine/Operator/OperatorTable.h
+++ b/src/Engine/Operator/OperatorTable.h
@@ -3,29 +3,25 @@
 #include <boost/config.hpp>
 #include "Engine/Network/NetworkManager.h"
 #include "Engine/Operator/GeometryOpDef.h"
+#include "Engine/Operator/OpInfo.h"
 #include "Engine/Parameter/Template.h"
 
 
 namespace enzo::op
 {
-struct OpInfo
-{
-    std::string internalName;
-    std::string displayName;
-    enzo::nt::opConstructor ctorFunc;
-};
 
 class BOOST_SYMBOL_EXPORT OperatorTable
 {
 public:
-    static void addOperator(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template templateList[]);
+    static void addOperator(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template* templates);
     static nt::opConstructor getOpConstructor(std::string name);
+    static const std::optional<op::OpInfo> getOpInfo(std::string name);
     static std::vector<OpInfo> getData();
     // TODO: move to better spot (maybe engine class)
     static void initPlugins();
 private:
     static std::vector<OpInfo> opInfoStore_;
 };
-using addOperatorPtr = void (*)(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template templateList[]);
+using addOperatorPtr = void (*)(const char* internalName, const char* displayName, nt::opConstructor ctorFunc, prm::Template* templateList);
 }
 
diff --git a/src/Engine/Parameter/FloatParm.cpp b/src/Engine/Parameter/FloatParm.cpp
new file mode 100644
index 0000000..5affc8d
--- /dev/null
+++ b/src/Engine/Parameter/FloatParm.cpp
@@ -0,0 +1,7 @@
+#include "Engine/Parameter/FloatParm.h"
+
+
+enzo::prm::FloatParm::FloatParm(Template prmTemplate)
+: template_{prmTemplate}
+{
+}
diff --git a/src/Engine/Parameter/FloatParm.h b/src/Engine/Parameter/FloatParm.h
new file mode 100644
index 0000000..3449e08
--- /dev/null
+++ b/src/Engine/Parameter/FloatParm.h
@@ -0,0 +1,18 @@
+#pragma once
+#include "Engine/Parameter/Template.h"
+#include "Engine/Types.h"
+
+namespace enzo::prm
+{
+class FloatParm
+{
+public:
+    FloatParm(Template prmTemplate);
+    inline bt::floatT getValue() const {return value_;}
+    inline void setValue(bt::floatT value) {value_ = value;}
+private:
+    Template template_;
+    bt::floatT value_ = 0;
+
+};
+}
diff --git a/src/Engine/Parameter/Template.cpp b/src/Engine/Parameter/Template.cpp
index 08256be..34f9f79 100644
--- a/src/Engine/Parameter/Template.cpp
+++ b/src/Engine/Parameter/Template.cpp
@@ -1,8 +1,8 @@
 #include "Engine/Parameter/Template.h"
 #include "Engine/Parameter/Type.h"
 
-enzo::prm::Template::Template(enzo::prm::Type type)
-: type_{type}
+enzo::prm::Template::Template(enzo::prm::Type type, const char* name)
+: type_{type}, name_{name}
 {
     
 }
diff --git a/src/Engine/Parameter/Template.h b/src/Engine/Parameter/Template.h
index a260836..cddc30a 100644
--- a/src/Engine/Parameter/Template.h
+++ b/src/Engine/Parameter/Template.h
@@ -7,9 +7,11 @@ namespace enzo::prm
 class Template
 {
 public:
-    Template(enzo::prm::Type type);
+    Template(enzo::prm::Type type, const char* name);
 private:
     enzo::prm::Type type_;
+    // TODO: make a class that holds token and name
+    const char* name_;
 
 };
 
diff --git a/src/Gui/Network/Network.cpp b/src/Gui/Network/Network.cpp
index 8cc2bdf..b8823eb 100644
--- a/src/Gui/Network/Network.cpp
+++ b/src/Gui/Network/Network.cpp
@@ -19,6 +19,7 @@
 #include <qgraphicsitem.h>
 #include <qnamespace.h>
 #include <QLine>
+#include <stdexcept>
 #include "Gui/Network/TabMenu.h"
 
 using namespace enzo;
@@ -310,30 +311,35 @@ void Network::keyPressEvent(QKeyEvent *event)
             tabMenu_->showOnMouse();
             break;
         }
-        case(Qt::Key_G):
-        {
-            if(auto newNode = createNode(op::OperatorTable::getOpConstructor("transform")))
-            {
-                newNode->setPos(viewPos);
-            }
+        // case(Qt::Key_G):
+        // {
+        //     auto opInfo = op::OperatorTable::getOpInfo("transform");
+        //     if(!opInfo.has_value()) {throw std::runtime_error("Couldn't find op info for: " + )}
+        //     if(
+        //         opInfo.has_value() &&
+        //         auto newNode = createNode(opInfo)
+        //         )
+        //     {
+        //         newNode->setPos(viewPos);
+        //     }
 
-            break;
-        }
-        case(Qt::Key_F):
-        {
-            if(auto newNode = createNode(op::OperatorTable::getOpConstructor("house")))
-            {
-                newNode->setPos(viewPos);
-            }
+        //     break;
+        // }
+        // case(Qt::Key_F):
+        // {
+        //     if(auto newNode = createNode(op::OperatorTable::getOpInfo("house")))
+        //     {
+        //         newNode->setPos(viewPos);
+        //     }
 
-            break;
-        }
+        //     break;
+        // }
     }
 }
 
-NodeGraphic* Network::createNode(nt::opConstructor ctorFunc)
+NodeGraphic* Network::createNode(op::OpInfo opInfo)
 {
-    if(nt::OpId id = enzo::nt::nm().addOperator(ctorFunc))
+    if(nt::OpId id = enzo::nt::nm().addOperator(opInfo))
     {
         NodeGraphic* newNode = new NodeGraphic(id);
         QPointF cursorPos = view_->mapToScene(mapFromGlobal(QCursor::pos()));
diff --git a/src/Gui/Network/Network.h b/src/Gui/Network/Network.h
index a918e68..74348d8 100644
--- a/src/Gui/Network/Network.h
+++ b/src/Gui/Network/Network.h
@@ -33,7 +33,7 @@ public:
         DEFAULT,
         MOVING_NODE
     };
-    NodeGraphic* createNode(enzo::nt::opConstructor ctorFunc);
+    NodeGraphic* createNode(enzo::op::OpInfo opInfo);
 
 private:
     QLayout* mainLayout_;
diff --git a/src/Gui/Network/TabMenu.cpp b/src/Gui/Network/TabMenu.cpp
index edff4e5..22f5757 100644
--- a/src/Gui/Network/TabMenu.cpp
+++ b/src/Gui/Network/TabMenu.cpp
@@ -171,11 +171,23 @@ void enzo::ui::TabMenu::textChanged(const QString &text)
     }
 }
 
+void enzo::ui::TabMenu::createNode(std::string nodeName)
+{
+    // get node info
+    std::optional<op::OpInfo> opInfo = op::OperatorTable::getOpInfo(nodeName);
+    // check valid result
+    if(!opInfo.has_value()) {throw std::runtime_error("Couldn't find op info for: " + nodeName);}
+
+    static_cast<Network*>(parentWidget())->createNode(opInfo.value());
+}
 
 void enzo::ui::TabMenu::nodeClicked()
 {
+    // get name of button clicked
     TabMenuButton* buttonClicked = static_cast<TabMenuButton*>(sender());
-    static_cast<Network*>(parentWidget())->createNode(op::OperatorTable::getOpConstructor(buttonClicked->nodeName));
+
+    createNode(buttonClicked->nodeName);
+
     doHide();
 }
 
@@ -230,7 +242,7 @@ bool enzo::ui::TabMenu::event(QEvent *event)
                 if(visibleButtons_.size()==0) return true;
                 if(selectionIndex_>=visibleButtons_.size()) selectionIndex_=visibleButtons_.size()-1;
                 auto button = visibleButtons_.at(selectionIndex_);
-                static_cast<Network*>(parentWidget())->createNode(op::OperatorTable::getOpConstructor(button->nodeName));
+                createNode(button->nodeName);
                 doHide();
                 return true;
             }
diff --git a/src/Gui/Network/TabMenu.h b/src/Gui/Network/TabMenu.h
index 33e7a4c..12f6f65 100644
--- a/src/Gui/Network/TabMenu.h
+++ b/src/Gui/Network/TabMenu.h
@@ -21,11 +21,11 @@ public:
     QString getDisplayText() {return displayText_;}
     void setSelected(bool selected);
 private:
+
     QHBoxLayout* mainLayout_;
     QLabel* textLabel_;
     QSvgWidget* icon_;
     QString displayText_;
-
 };
 
 class TabMenu
@@ -42,6 +42,7 @@ private:
         DOWN
     };
 
+    void createNode(std::string nodeName);
     QVBoxLayout* mainLayout_;
     QLineEdit* searchBar_;
     QScrollArea* nodeScrollArea_;
diff --git a/src/OpDefs/GopTransform.cpp b/src/OpDefs/GopTransform.cpp
index c487803..0ff36af 100644
--- a/src/OpDefs/GopTransform.cpp
+++ b/src/OpDefs/GopTransform.cpp
@@ -38,5 +38,8 @@ void GopTransform::cookOp(enzo::op::Context context)
 
 }
 
-enzo::prm::Template GopTransform::parameterList[] = {};
+enzo::prm::Template GopTransform::parameterList[] = {
+    enzo::prm::Template(enzo::prm::Type::FLOAT, "Test"),
+    enzo::prm::Template(enzo::prm::Type::FLOAT, "Test2")
+};