diff --git a/src/common/serialization/vst3.h b/src/common/serialization/vst3.h
index b8c88840..5452a09e 100644
--- a/src/common/serialization/vst3.h
+++ b/src/common/serialization/vst3.h
@@ -108,7 +108,10 @@ using ControlRequest = std::variant<Vst3PlugViewProxy::Destruct,
                                     YaUnitInfo::GetProgramInfo,
                                     YaUnitInfo::HasProgramPitchNames,
                                     YaUnitInfo::GetProgramPitchName,
-                                    YaUnitInfo::GetSelectedUnit>;
+                                    YaUnitInfo::GetSelectedUnit,
+                                    YaUnitInfo::SelectUnit,
+                                    YaUnitInfo::GetUnitByBus,
+                                    YaUnitInfo::SetUnitProgramData>;
 
 template <typename S>
 void serialize(S& s, ControlRequest& payload) {
diff --git a/src/plugin/bridges/vst3-impls/plugin-proxy.cpp b/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
index 7916333a..39221270 100644
--- a/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
+++ b/src/plugin/bridges/vst3-impls/plugin-proxy.cpp
@@ -542,9 +542,8 @@ Steinberg::Vst::UnitID PLUGIN_API Vst3PluginProxyImpl::getSelectedUnit() {
 
 tresult PLUGIN_API
 Vst3PluginProxyImpl::selectUnit(Steinberg::Vst::UnitID unitId) {
-    // TODO: Implement
-    bridge.logger.log("TODO: IUnitInfo::selectUnit()");
-    return Steinberg::kNotImplemented;
+    return bridge.send_message(YaUnitInfo::SelectUnit{
+        .instance_id = instance_id(), .unit_id = unitId});
 }
 
 tresult PLUGIN_API
@@ -553,16 +552,25 @@ Vst3PluginProxyImpl::getUnitByBus(Steinberg::Vst::MediaType type,
                                   int32 busIndex,
                                   int32 channel,
                                   Steinberg::Vst::UnitID& unitId /*out*/) {
-    // TODO: Implement
-    bridge.logger.log("TODO: IUnitInfo::getUnitByBus()");
-    return Steinberg::kNotImplemented;
+    const GetUnitByBusResponse response = bridge.send_message(
+        YaUnitInfo::GetUnitByBus{.instance_id = instance_id(),
+                                 .type = type,
+                                 .dir = dir,
+                                 .bus_index = busIndex,
+                                 .channel = channel});
+
+    unitId = response.unit_id;
+
+    return response.result;
 }
 
 tresult PLUGIN_API
 Vst3PluginProxyImpl::setUnitProgramData(int32 listOrUnitId,
                                         int32 programIndex,
                                         Steinberg::IBStream* data) {
-    // TODO: Implement
-    bridge.logger.log("TODO: IUnitInfo::setUnitProgramData()");
-    return Steinberg::kNotImplemented;
+    return bridge.send_message(
+        YaUnitInfo::SetUnitProgramData{.instance_id = instance_id(),
+                                       .list_or_unit_id = listOrUnitId,
+                                       .program_index = programIndex,
+                                       .data = data});
 }
diff --git a/src/wine-host/bridges/vst3.cpp b/src/wine-host/bridges/vst3.cpp
index 17a2a650..35852cea 100644
--- a/src/wine-host/bridges/vst3.cpp
+++ b/src/wine-host/bridges/vst3.cpp
@@ -644,6 +644,30 @@ void Vst3Bridge::run() {
                 return object_instances[request.instance_id]
                     .unit_info->getSelectedUnit();
             },
+            [&](const YaUnitInfo::SelectUnit& request)
+                -> YaUnitInfo::SelectUnit::Response {
+                return object_instances[request.instance_id]
+                    .unit_info->selectUnit(request.unit_id);
+            },
+            [&](const YaUnitInfo::GetUnitByBus& request)
+                -> YaUnitInfo::GetUnitByBus::Response {
+                Steinberg::Vst::UnitID unit_id;
+                const tresult result =
+                    object_instances[request.instance_id]
+                        .unit_info->getUnitByBus(request.type, request.dir,
+                                                 request.bus_index,
+                                                 request.channel, unit_id);
+
+                return YaUnitInfo::GetUnitByBusResponse{.result = result,
+                                                        .unit_id = unit_id};
+            },
+            [&](YaUnitInfo::SetUnitProgramData& request)
+                -> YaUnitInfo::SetUnitProgramData::Response {
+                return object_instances[request.instance_id]
+                    .unit_info->setUnitProgramData(request.list_or_unit_id,
+                                                   request.program_index,
+                                                   &request.data);
+            },
         });
 }