diff --git a/src/Utils.cpp b/src/Utils.cpp
index 1215bf6a..c50efecb 100644
--- a/src/Utils.cpp
+++ b/src/Utils.cpp
@@ -300,20 +300,6 @@ QSpinBox* Utils::GetTransitionDurationControl() {
 	return window->findChild<QSpinBox*>("transitionDuration");
 }
 
-int Utils::GetTransitionDuration() {
-	QSpinBox* control = GetTransitionDurationControl();
-	if (control)
-		return control->value();
-	else
-		return -1;
-}
-
-void Utils::SetTransitionDuration(int ms) {
-	QSpinBox* control = GetTransitionDurationControl();
-	if (control && ms >= 0)
-		control->setValue(ms);
-}
-
 bool Utils::SetTransitionByName(QString transitionName) {
 	OBSSourceAutoRelease transition = GetTransitionFromName(transitionName);
 
@@ -325,40 +311,6 @@ bool Utils::SetTransitionByName(QString transitionName) {
 	}
 }
 
-QPushButton* Utils::GetPreviewModeButtonControl() {
-	QMainWindow* main = (QMainWindow*)obs_frontend_get_main_window();
-	return main->findChild<QPushButton*>("modeSwitch");
-}
-
-QLayout* Utils::GetPreviewLayout() {
-	QMainWindow* main = (QMainWindow*)obs_frontend_get_main_window();
-	return main->findChild<QLayout*>("previewLayout");
-}
-
-void Utils::TransitionToProgram() {
-	if (!obs_frontend_preview_program_mode_active())
-		return;
-
-	// WARNING : if the layout created in OBS' CreateProgramOptions() changes
-	// then this won't work as expected
-
-	QMainWindow* main = (QMainWindow*)obs_frontend_get_main_window();
-
-	// The program options widget is the second item in the left-to-right layout
-	QWidget* programOptions = GetPreviewLayout()->itemAt(1)->widget();
-
-	// The "Transition" button lies in the mainButtonLayout
-	// which is the first itemin the program options' layout
-	QLayout* mainButtonLayout = programOptions->layout()->itemAt(1)->layout();
-	QWidget* transitionBtnWidget = mainButtonLayout->itemAt(0)->widget();
-
-	// Try to cast that widget into a button
-	QPushButton* transitionBtn = qobject_cast<QPushButton*>(transitionBtnWidget);
-
-	// Perform a click on that button
-	transitionBtn->click();
-}
-
 QString Utils::OBSVersionString() {
 	uint32_t version = obs_get_version();
 
diff --git a/src/Utils.h b/src/Utils.h
index 65498a96..d832157b 100644
--- a/src/Utils.h
+++ b/src/Utils.h
@@ -53,17 +53,9 @@ class Utils {
 
 	// TODO contribute a proper frontend API method for this to OBS and remove this hack
 	static QSpinBox* GetTransitionDurationControl();
-	static int GetTransitionDuration();
-	static void SetTransitionDuration(int ms);
 
 	static bool SetTransitionByName(QString transitionName);
 
-	static QPushButton* GetPreviewModeButtonControl();
-	static QLayout* GetPreviewLayout();
-
-	// TODO contribute a proper frontend API method for this to OBS and remove this hack
-	static void TransitionToProgram();
-
 	static QString OBSVersionString();
 
 	static QSystemTrayIcon* GetTrayIcon();
diff --git a/src/WSEvents.cpp b/src/WSEvents.cpp
index 98169f2c..7aa3d779 100644
--- a/src/WSEvents.cpp
+++ b/src/WSEvents.cpp
@@ -830,7 +830,7 @@ void WSEvents::OnTransitionBegin(void* param, calldata_t* data) {
 	{
 		duration = obs_data_get_int(destinationSettings, "transition_duration");
 	} else {
-		duration = Utils::GetTransitionDuration();
+		duration = obs_frontend_get_transition_duration();
 	}
 
 	OBSDataAutoRelease fields = obs_data_create();
diff --git a/src/WSRequestHandler_StudioMode.cpp b/src/WSRequestHandler_StudioMode.cpp
index 57f54e4b..fe1e7309 100644
--- a/src/WSRequestHandler_StudioMode.cpp
+++ b/src/WSRequestHandler_StudioMode.cpp
@@ -116,11 +116,11 @@ HandlerResponse WSRequestHandler::HandleTransitionToProgram(WSRequestHandler* re
 		if (obs_data_has_user_value(transitionInfo, "duration")) {
 			int transitionDuration =
 				obs_data_get_int(transitionInfo, "duration");
-			Utils::SetTransitionDuration(transitionDuration);
+			obs_frontend_set_transition_duration(transitionDuration);
 		}
 	}
 
-	Utils::TransitionToProgram();
+	obs_frontend_preview_program_trigger_transition();
 	return req->SendOKResponse();
 }
 
diff --git a/src/WSRequestHandler_Transitions.cpp b/src/WSRequestHandler_Transitions.cpp
index b3ff9ac9..7295736b 100644
--- a/src/WSRequestHandler_Transitions.cpp
+++ b/src/WSRequestHandler_Transitions.cpp
@@ -56,7 +56,7 @@ HandlerResponse WSRequestHandler::HandleGetCurrentTransition(WSRequestHandler* r
 		obs_source_get_name(currentTransition));
 
 	if (!obs_transition_fixed(currentTransition))
-		obs_data_set_int(response, "duration", Utils::GetTransitionDuration());
+		obs_data_set_int(response, "duration", obs_frontend_get_transition_duration());
 
 	return req->SendOKResponse(response);
 }
@@ -101,7 +101,7 @@ HandlerResponse WSRequestHandler::HandleSetTransitionDuration(WSRequestHandler*
 	}
 
 	int ms = obs_data_get_int(req->data, "duration");
-	Utils::SetTransitionDuration(ms);
+	obs_frontend_set_transition_duration(ms);
 	return req->SendOKResponse();
 }
 
@@ -117,6 +117,6 @@ HandlerResponse WSRequestHandler::HandleSetTransitionDuration(WSRequestHandler*
  */
 HandlerResponse WSRequestHandler::HandleGetTransitionDuration(WSRequestHandler* req) {
 	OBSDataAutoRelease response = obs_data_create();
-	obs_data_set_int(response, "transition-duration", Utils::GetTransitionDuration());
+	obs_data_set_int(response, "transition-duration", obs_frontend_get_transition_duration());
 	return req->SendOKResponse(response);
 }