diff --git a/Source/UI/Lists/UIScrollBar.cpp b/Source/UI/Lists/UIScrollBar.cpp
index 601aa9cd..551f8eff 100644
--- a/Source/UI/Lists/UIScrollBar.cpp
+++ b/Source/UI/Lists/UIScrollBar.cpp
@@ -321,8 +321,43 @@ void UIScrollBar::Configure(int x, int y, unsigned char vertical, int length) {
 }
 
 // OFFSET: 0x00880800
+// FUNCTION: fn_11279
+int UIListBoxEx::FindLine(const std::string& text) {
+  const std::string key = text;
+  auto it = this->lines.begin();
+  for (; it != this->lines.end(); ++it) {
+    if (key == it->second.text) {
+      break;
+    }
+  }
+  return it == this->lines.end() ? -1 : it->first;
+}
 
 // OFFSET: 0x00880920
+// FUNCTION: fn_11280
+int UIImgMenu::ItemAt(int x, int y) {
+  const int width = this->geometry.width - 3;
+  if (x < 1 || x >= width || y < 1) {
+    return -1;
+  }
+  const int height = this->geometry.height - 3;
+  if (y >= height) {
+    return -1;
+  }
+
+  int size;
+  int offset;
+  if (this->horizontal != 0) {
+    size = width / this->count;
+    this->itemWidth = size;
+    offset = x;
+  } else {
+    size = height / this->count;
+    this->itemHeight = size;
+    offset = y;
+  }
+  return std::min(offset / size, this->count - 1);
+}
 
 // OFFSET: 0x00880B20
 // FUNCTION: fn_11283
@@ -331,5 +366,27 @@ int UITabControl::TabCount() {
 }
 
 // OFFSET: 0x00880B40
+// FUNCTION: fn_11284
+int UITabControl::TabAt(int x, int y) {
+  int offset = x;
+  if (this->layout == 0 || this->layout == 2) {
+    offset = y;
+  }
+  const int count = this->TabCount();
+  for (int index = 0; index < count; ++index) {
+    offset -= this->widths[index];
+    if (offset < 0) {
+      return index;
+    }
+  }
+  return -1;
+}
 
 // OFFSET: 0x00880BB0
+// FUNCTION: fn_11285
+const char* UIChatHisBox::HistoryText(unsigned int index) {
+  if (index < this->history.size() && !this->history[index].empty()) {
+    return this->history[index].c_str();
+  }
+  return nullptr;
+}