diff --git a/Tablet/TableDirector.swift b/Tablet/TableDirector.swift
index 6bc4d97..f0c8374 100644
--- a/Tablet/TableDirector.swift
+++ b/Tablet/TableDirector.swift
@@ -26,12 +26,13 @@ import UIKit
 public class TableDirector: NSObject, UITableViewDataSource, UITableViewDelegate {
 
     public private(set) weak var tableView: UITableView?
-    public weak var scrollDelegate: UIScrollViewDelegate?
+    private weak var scrollDelegate: UIScrollViewDelegate?
     private var sections = [TableSectionBuilder]()
 
-    public init(tableView: UITableView) {
+    public init(tableView: UITableView, scrollDelegate: UIScrollViewDelegate? = nil) {
         super.init()
 
+        self.scrollDelegate = scrollDelegate
         self.tableView = tableView
         self.tableView?.delegate = self
         self.tableView?.dataSource = self
diff --git a/Tablet/TableRowBuilder.swift b/Tablet/TableRowBuilder.swift
index 222e0cc..8cedf6c 100644
--- a/Tablet/TableRowBuilder.swift
+++ b/Tablet/TableRowBuilder.swift
@@ -43,5 +43,17 @@ public class TableRowBuilder<DataType, CellType: ConfigurableCell where CellType
     
     public override func estimatedRowHeight(index: Int) -> CGFloat {
         return CGFloat(CellType.estimatedHeight())
+    }
+}
+
+public class LolRowBuilder {
+    
+    public init() {
+        
+    }
+    
+    public func append<ItemType, CellType: ConfigurableCell where CellType.T == ItemType, CellType: UITableViewCell>(items: [ItemType], cellType: CellType.Type) {
+        
+        
     }
 }
\ No newline at end of file
diff --git a/TabletDemo/Classes/Presentation/Controllers/MainController.swift b/TabletDemo/Classes/Presentation/Controllers/MainController.swift
index 8e3330f..45ad1fc 100644
--- a/TabletDemo/Classes/Presentation/Controllers/MainController.swift
+++ b/TabletDemo/Classes/Presentation/Controllers/MainController.swift
@@ -9,6 +9,19 @@
 import UIKit
 import Tablet
 
+class LolCell: UITableViewCell, ConfigurableCell {
+    
+    typealias T = String
+    
+    func configure(str: T) {
+        
+    }
+    
+    static func estimatedHeight() -> Float {
+        return 44
+    }
+}
+
 class MainController: UIViewController {
     
     @IBOutlet weak var tableView: UITableView! {
@@ -28,9 +41,14 @@ class MainController: UIViewController {
         
         let rows2 = TablePrototypeRowBuilder<String, StoryboardImageTableViewCell>(items: ["1", "1", "1", "1"])
         
+        // animation task
         rows.remove(index: 0, animated: .None)
 
         tableDirector += rows
         tableDirector += rows2
+        
+        let lolBuilder = LolRowBuilder()
+        
+        lolBuilder.append(["1", "2", "3"], cellType: LolCell.self)
     }
 }
\ No newline at end of file