diff --git a/Sources/TableDirector.swift b/Sources/TableDirector.swift
index 808d4be..925aeb0 100644
--- a/Sources/TableDirector.swift
+++ b/Sources/TableDirector.swift
@@ -31,7 +31,9 @@ open class TableDirector: NSObject, UITableViewDataSource, UITableViewDelegate {
     private weak var scrollDelegate: UIScrollViewDelegate?
     private var cellRegisterer: TableCellRegisterer?
     public private(set) var rowHeightCalculator: RowHeightCalculator?
-
+    public var sectionIndexTitles: [String]?
+    public var onSectionForIndex: ((_ title: String, _ index: Int) -> Int)?
+    
     @available(*, deprecated, message: "Produced incorrect behaviour")
     open var shouldUsePrototypeCellHeightCalculation: Bool = false {
         didSet {
@@ -192,6 +194,18 @@ open class TableDirector: NSObject, UITableViewDataSource, UITableViewDelegate {
         return section.footerHeight ?? section.footerView?.frame.size.height ?? UITableViewAutomaticDimension
     }
     
+    // MARK: UITableViewDataSource - Index
+    
+    public func sectionIndexTitles(for tableView: UITableView) -> [String]? {
+        return sectionIndexTitles
+    }
+    
+    public func tableView(_ tableView: UITableView, sectionForSectionIndexTitle title: String, at index: Int) -> Int {
+        guard let onSectionForIndex = onSectionForIndex else { return 0 }
+        
+        return onSectionForIndex(title, index)
+    }
+    
     // MARK: UITableViewDelegate - actions
     
     open func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
diff --git a/TableKit.podspec b/TableKit.podspec
index 22d3c4c..260e2cc 100644
--- a/TableKit.podspec
+++ b/TableKit.podspec
@@ -2,7 +2,7 @@ Pod::Spec.new do |s|
     s.name                  = 'TableKit'
     s.module_name           = 'TableKit'
 
-    s.version               = '2.3.1'
+    s.version               = '2.4.0'
 
     s.homepage              = 'https://github.com/maxsokolov/TableKit'
     s.summary               = 'Type-safe declarative table views with Swift.'
@@ -14,4 +14,4 @@ Pod::Spec.new do |s|
 
     s.source_files          = 'Sources/*.swift'
     s.source                = { :git => 'https://github.com/maxsokolov/TableKit.git', :tag => s.version }
-end
\ No newline at end of file
+end