diff --git a/Helper/HelperGdb.cs b/Helper/HelperGdb.cs
index 8dd14d3..3fd4980 100644
--- a/Helper/HelperGdb.cs
+++ b/Helper/HelperGdb.cs
@@ -28,8 +28,9 @@ namespace OliviaAddInPro.Helper
         public static FeatureClass OpenFtClassDialog(TiposOpenFileDlg tipo, string initialLoc = "")
         {
             Item it = OpenFileDialog( tipo,  initialLoc);
-            FeatureClass fc = it as FeatureClass;
-            return fc;
+            //FeatureClass fc = new FeatureClass();
+            // return fc;
+            return null;
         }
 
         public static async Task<Geodatabase> OpenGdb(string path)
diff --git a/OliviaAddInPro.csproj b/OliviaAddInPro.csproj
index 969e6da..90197c9 100644
--- a/OliviaAddInPro.csproj
+++ b/OliviaAddInPro.csproj
@@ -23,7 +23,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <StartAction>Program</StartAction>
-    <StartProgram>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGISPro.exe</StartProgram>
+    <StartProgram>$(ArcGISFolder)\bin\ArcGISPro.exe</StartProgram>
     <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
@@ -34,7 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <StartAction>Program</StartAction>
-    <StartProgram>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGISPro.exe</StartProgram>
+    <StartProgram>$(ArcGISFolder)\bin\ArcGISPro.exe</StartProgram>
     <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup>
@@ -55,63 +55,63 @@
     <Reference Include="WindowsBase" />
     <Reference Include="System.Xaml" />
     <Reference Include="ArcGIS.Desktop.Framework">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.Framework.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.Framework.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Core">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Core.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Core.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Core">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\Core\ArcGIS.Desktop.Core.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\Core\ArcGIS.Desktop.Core.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Mapping">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\Mapping\ArcGIS.Desktop.Mapping.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\Mapping\ArcGIS.Desktop.Mapping.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Catalog">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\Catalog\ArcGIS.Desktop.Catalog.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\Catalog\ArcGIS.Desktop.Catalog.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Editing">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\Editing\ArcGIS.Desktop.Editing.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\Editing\ArcGIS.Desktop.Editing.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Extensions">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\DesktopExtensions\ArcGIS.Desktop.Extensions.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\DesktopExtensions\ArcGIS.Desktop.Extensions.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.GeoProcessing">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\GeoProcessing\ArcGIS.Desktop.GeoProcessing.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\GeoProcessing\ArcGIS.Desktop.GeoProcessing.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Layouts">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\Extensions\Layout\ArcGIS.Desktop.Layouts.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\Extensions\Layout\ArcGIS.Desktop.Layouts.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Shared.Wpf">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.Shared.Wpf.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.Shared.Wpf.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Ribbon.Wpf">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.Ribbon.Wpf.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.Ribbon.Wpf.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.DataGrid.Contrib.Wpf">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.DataGrid.Contrib.Wpf.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.DataGrid.Contrib.Wpf.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Resources">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.Resources.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.Resources.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ArcGIS.Desktop.Resources">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ArcGIS.Desktop.Resources.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ArcGIS.Desktop.Resources.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ESRI.ArcGIS.ItemIndex">
-      <HintPath>C:\Users\Elena\AppData\Local\Programs\ArcGIS\Pro\bin\ESRI.ArcGIS.ItemIndex.dll</HintPath>
+      <HintPath>$(ArcGISFolder)\bin\ESRI.ArcGIS.ItemIndex.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="Xceed.Wpf.Toolkit">