diff --git a/documentation/examples/compare-objects-and-parameters.gif b/documentation/examples/compare-objects-and-parameters.gif
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index 0000000..b143dc1
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diff --git a/readme.md b/readme.md
index 9539529..3229ffe 100644
--- a/readme.md
+++ b/readme.md
@@ -4,6 +4,7 @@
 
 Yet another [RevitLookup](/~https://github.com/jeremytammik/RevitLookup) like tool. RevitLookup was an indispensable tool to work with Revit API for many years. But now, there is a better tool for the job. Let me introduce you to Revit database explorer and its capabilities. It not only allows us to explore database in a more efficient way thanks to querying, but also to modify Revit database through ad hoc scripts written in C#. 
 
+- [compare objects and parameters](#compare-object-members-and-element-parameters-values)
 - [query Revit database](#query-revit-database-with-rdq-revit-database-querying)
 - [script Revit database](#script-revit-database-with-rds-revit-database-scripting)
   - [ad hoc SELECT query](#ad-hoc-select-query)
@@ -30,6 +31,10 @@ Download and install [RevitDBExplorer.msi](/~https://github.com/NeVeSpl/RevitDBExp
 
 ## Features
 
+### compare object members and element parameters values
+
+![compare objects and parameters](documentation/examples/compare-objects-and-parameters.gif)
+
 ### query Revit database with RDQ (Revit database querying)
 
 RDQ is able to interpret words separated by `,` as element ids, Revit classes, categories, parameters and many more. RDQ builds from them FilteredElementCollector and uses it to query Revit database. 
diff --git a/sources/RevitDBExplorer/Domain/DataModel/SnoopableParameter.cs b/sources/RevitDBExplorer/Domain/DataModel/SnoopableParameter.cs
index b23f7f6..cef60bb 100644
--- a/sources/RevitDBExplorer/Domain/DataModel/SnoopableParameter.cs
+++ b/sources/RevitDBExplorer/Domain/DataModel/SnoopableParameter.cs
@@ -1,6 +1,5 @@
 using System;
 using Autodesk.Revit.DB;
-using Autodesk.Revit.DB.Architecture;
 using RevitDBExplorer.Domain.DataModel.Parameters;
 using RevitDBExplorer.Domain.DataModel.ValueContainers.Base;
 using RevitDBExplorer.Domain.DataModel.ValueViewModels;