diff --git a/TecktroHack/ui_interface.ino b/TecktroHack/ui_interface.ino
index 609fc56..e69b670 100644
--- a/TecktroHack/ui_interface.ino
+++ b/TecktroHack/ui_interface.ino
@@ -44,9 +44,13 @@ enum MenuState {
 };
 
 
-const char* modelList[] = { "MDO5", "MDO4", "MDO3", "MDO2", "MDO1", "DPO5", "DPO4", "DPO3", "DPO2", "DPO1" };
+const char* modelList[] = { "DPO4", "DPO3", "DPO2", "DPO1", "MDO4", "MDO3", "MDO2", "MDO1"};
 const uint8_t modelCount = sizeof(modelList) / sizeof(modelList[0]);
 
+// Фильтрация опций по модели
+uint8_t filteredOptionIndexes[50];
+uint8_t filteredOptionCount = 0;
+
 const char* optionList[] = {
   "BND",    // Bundle (all-in-one)
   "AERO",   // Aerospace serial buses
@@ -63,38 +67,107 @@ const char* optionList[] = {
   "PWR",    // Power analysis
   "SA",     // Spectrum Analyzer
   "SA3",     // Spectrum Analyzer
+  "SA3T6",     // Spectrum Analyzer
   "SA6",     // Spectrum Analyzer
   "SEC",    // Security extension
   "TRIG",   // RF Power Level Trigger
   "USB",    // USB analysis
   "VID"     // Video signal triggering
 };
+const uint8_t optionCount = sizeof(optionList) / sizeof(optionList[0]);
 
 const char* optionDescriptions[] = {
   "Include all available options in one",
-  "Aerospace buses: MIL-STD-1553, ARINC 429",
+  "Aerospace buses: MIL-STD-1553",
   "Waveform generator for custom signals",
-  "Audio buses: I2S, TDM, LJ, RJ",
-  "Cars buses: CAN FD, CAN, LIN",
-  "Cars buses: CAN FD, CAN, LIN, FlexRay",
-  "Computer buses: SPI, I2C, RS-232, PS/2",
-  "Embedded protocols: I2C, SPI, UART, GPIO",
-  "Ethernet: 10/100/1000BASE-T",
+  "Audio buses: I2S, LJ, RJ, TDM",
+  "Cars buses: CAN, CAN FD, LIN",
+  "Cars buses: CAN, CAN FD, LIN, FlexRay",
+  "Computer buses: RS-232/422/485, UART",
+  "Embedded protocols: I2C, SPI",
+  "Ethernet: 10BASE-T, 100BASE-TX",
   "Cars bus FlexRay",
   "Limit and mask testing: Go/No-Go",
   "Mixed Signal Oscill: analog + digital",
-  "Power analysis: efficiency, ripple, Bode",
+  "Power: efficiency, ripple, dI/dt, dV/dt",
   "Spectrum analysis: RF, high-frequency",
   "Spectr analysis (3 MHz): RF, high-frequency",
+  "SA3 extention to 6 MHz for MDO4000C",
   "Spectr analysis (6 MHz): RF, high-frequency",
   "Security extension: access control",
   "RF power level triggering",
-  "USB decoding: USB 1.x/2.0/3.x",
-  "Video triggering: HDMI, VGA, analog"
+  "USB decoding: USB LS, FS, HS",
+  "Video triggering: HDTV"
 };
 
 
-const uint8_t optionCount = sizeof(optionList) / sizeof(optionList[0]);
+bool isOptionForDPO[] = {
+  true,   // BND     → DPO4BND
+  true,   // AERO    → DPO4AERO
+  false,  // AFG     → (не используется в DPO)
+  true,   // AUDIO   → DPO4AUDIO
+  true,   // AUTO    → DPO4AUTO
+  true,   // AUTOMAX → нет в DPO
+  true,   // COMP    → DPO4COMP
+  true,   // EMBD    → DPO4EMBD
+  true,   // ENET    → DPO4ENET
+  true,   // FLEX    → нет упоминания, но оставим
+  true,   // LMT     → DPO4LMT
+  false,  // MSO     → только для MDO (MDO4MSO)
+  true,   // PWR     → DPO4PWR
+  false,  // SA      → только MDO
+  false,  // SA3     → только MDO
+  false,  // SA3T6   → только MDO
+  false,  // SA6     → только MDO
+  false,  // SEC     → только MDO (MDO4SEC)
+  false,  // TRIG    → только MDO (MDO4TRIG)
+  true,   // USB     → DPO4USB
+  true    // VID     → DPO4VID
+};
+
+bool isOptionForMDO[] = {
+  false,  // BND     → нет прямого MDO4BND
+  false,  // AERO
+  true,   // AFG     → MDO4AFG
+  false,  // AUDIO
+  false,  // AUTO
+  false,  // AUTOMAX → пусть будет для MDO
+  false,  // COMP
+  false,  // EMBD
+  false,  // ENET
+  false,  // FLEX
+  false,  // LMT
+  true,   // MSO     → MDO4MSO
+  false,  // PWR
+  true,   // SA      → MDO4SA3/MDO4SA6
+  true,   // SA3     → MDO4SA3
+  true,   // SA3     → MDO4SA3T6
+  true,   // SA6     → MDO4SA6
+  true,   // SEC     → MDO4SEC
+  true,   // TRIG    → MDO4TRIG
+  false,  // USB
+  false   // VID
+};
+
+void filterOptionsForModel(const char* modelName) {
+  filteredOptionCount = 0;
+
+  bool isMDO = strstr(modelName, "MDO") != nullptr;
+  bool isDPO = strstr(modelName, "DPO") != nullptr;
+
+  for (uint8_t i = 0; i < optionCount; ++i) {
+    if ((isMDO && isOptionForMDO[i]) || (isDPO && isOptionForDPO[i])) {
+      filteredOptionIndexes[filteredOptionCount++] = i;
+    }
+  }
+
+  // Подстраховка
+  if (filteredOptionCount == 0) {
+    for (uint8_t i = 0; i < sizeof(optionList); ++i)
+      filteredOptionIndexes[filteredOptionCount++] = i;
+  }
+}
+
 
 uint8_t selectedModel = 0;
 uint8_t selectedOption = 0;
@@ -312,8 +385,10 @@ void updateMenuDisplay() {
     u8g2.setFont(FONT);  // основной шрифт
     u8g2.drawStr(0, LINE_SPACING * 1, "Option:");
 
+    if (cursorPos >= filteredOptionCount) cursorPos = filteredOptionCount - 1;
+
     char line[20];
-    uint8_t optIndex = cursorPos % optionCount;
+    uint8_t optIndex = filteredOptionIndexes[cursorPos];
     snprintf(line, sizeof(line), ">%s", optionList[optIndex]);
     u8g2.drawStr(0, LINE_SPACING * 2, line);
 
@@ -399,11 +474,12 @@ void handleOk() {
 
   } else if (currentMenu == MENU_SELECT_MODEL) {
     selectedModel = cursorPos % modelCount;
+    filterOptionsForModel(modelList[selectedModel]);  // ← ВАЖНО!
     cursorPos = 0;
     currentMenu = MENU_SELECT_OPTION;
 
   } else if (currentMenu == MENU_SELECT_OPTION) {
-    selectedOption = cursorPos % optionCount;
+    selectedOption = filteredOptionIndexes[cursorPos];;
 
     char fullModule[32];
     snprintf(fullModule, sizeof(fullModule), "%s%s", modelList[selectedModel], optionList[selectedOption]);