diff --git a/BLL/CommitDetail.cs b/BLL/CommitDetail.cs
index 4c33525..4194a87 100644
--- a/BLL/CommitDetail.cs
+++ b/BLL/CommitDetail.cs
@@ -5,6 +5,9 @@ public class CommitDetail
     private List<string>? _authors;
     private SortedList<string, int>? _commitDetails;
     private string _currentBranch;
+    private string? _outputOption;
+    private string? _branchOption;
+    private string? _tagOption;
     private string? _selectedDir;
 
     public List<string>? Authors
@@ -25,18 +28,28 @@ public class CommitDetail
         set { _currentBranch = value; }
     }
 
-    public string SelectedDir
+    public string? SelectedDir
     {
         get { return _selectedDir; }
         set { _selectedDir = value; }
     }
 
-    public CommitDetail(string dir)
+    public CommitDetail(string? dir)
     {
+        if (!String.IsNullOrEmpty(dir)) {
+            _selectedDir = dir;
+        } else {
+            _selectedDir = Directory.GetCurrentDirectory();
+        }
+
         _authors = new List<string>();
         _commitDetails = new SortedList<string, int>();
         _currentBranch = GetCurrentBranch();
-        _selectedDir = Directory.Exists(dir) ? dir : Directory.GetCurrentDirectory();
+
+        // unused, might be used later for a refactor
+        _outputOption = null;
+        _branchOption = null;
+        _tagOption = null;
     }
 
     public void GetCurrentCommitsByName()