diff --git a/src/back/backlasses.cpp b/src/back/backlasses.cpp
index ab68c51..083d60c 100644
--- a/src/back/backlasses.cpp
+++ b/src/back/backlasses.cpp
@@ -125,21 +125,17 @@ HRESULT EndpointSituationCallback::OnDefaultDeviceChanged(EDataFlow flow, ERole
 			nRole = Roles::ROLE_COMMUNICATIONS;
 			break;
 	}
-
-	osh
+	std::wstring wstringEndpointId = pwstrDeviceId;
+	osh->changeFrontDefaultsCallback(nRole, wstringEndpointId);
 
 	return S_OK;
 }
 
 HRESULT EndpointSituationCallback::OnDeviceAdded(LPCWSTR pwstrDeviceId) {
-	
-	printf("  -->Added device\n");
 	return S_OK;
 };
 
-HRESULT EndpointSituationCallback::OnDeviceRemoved(LPCWSTR pwstrDeviceId) {
-	
-	printf("  -->Removed device\n");
+HRESULT EndpointSituationCallback::OnDeviceRemoved(LPCWSTR pwstrDeviceId) {	
 	return S_OK;
 }
 
@@ -331,11 +327,15 @@ void Endpoint::setRoles(Roles role){
 }
 
 void Endpoint::assignRoles(uint8_t role){ 
-	//todo: operador virtuoso
 	uint8_t roles = endpointRoles | role;
 	this->endpointRoles = roles;
 }
 
+void Endpoint::removeRoles(uint8_t role){ 
+	uint8_t roles = endpointRoles ^ role;
+	this->endpointRoles = roles;
+}
+
 Endpoint::~Endpoint(){
 	log_debugcpp("murio endpoint-san uwu");
 	properties->Release();
diff --git a/src/back/backlasses.h b/src/back/backlasses.h
index db905a4..d8b0d2b 100644
--- a/src/back/backlasses.h
+++ b/src/back/backlasses.h
@@ -44,6 +44,7 @@ class Endpoint {
 	uint8_t getRoles();
 	void setRoles(Roles role);
 	void assignRoles(uint8_t role);
+	void removeRoles(uint8_t role);
 	std::wstring getId();
 	std::wstring getName();
 	void setVolumeCallback(EndpointVolumeCallback *epc);
diff --git a/src/cont/contclasses.cpp b/src/cont/contclasses.cpp
index da1033c..abedbfd 100644
--- a/src/cont/contclasses.cpp
+++ b/src/cont/contclasses.cpp
@@ -17,6 +17,16 @@ EndpointHandler::EndpointHandler(uint64_t idx) {
 	}
 }
 
+/* 	these two, currently unused. If I use them, I should feel bad.
+ * Endpoint* EndpointHandler::getEndpoint() {
+ * 	return this->ep;
+ * }
+ * 
+ * EndpointVolumeCallback* EndpointHandler::getEndpointVolumeCallback() {
+ * 	return this->epc;
+ * }
+ */
+
 BackEndpointVolumeCallbackInfo* EndpointHandler::getCallbackInfo(){
 	return &this->callbackInfo;
 }
@@ -50,6 +60,10 @@ std::wstring EndpointHandler::getName(){
 	return ep->getName();
 }
 
+std::wstring EndpointHandler::getId(){
+	return ep->getId();
+}
+
 float EndpointHandler::getVolume(int channel){
     return ep->getVolume(channel);
 }
@@ -74,6 +88,14 @@ void EndpointHandler::setRoles(Roles newRole){
 	ep->setRoles(newRole);
 }
 
+void EndpointHandler::assignRoles(Roles newRole){
+	ep->assignRoles((uint8_t)newRole);
+}
+
+void EndpointHandler::removeRoles(Roles newRole){
+	ep->removeRoles((uint8_t)newRole);
+}
+
 EndpointHandler::~EndpointHandler() {
 	ep->removeVolumeCallback(epc);
 	epc->Release();
@@ -122,10 +144,14 @@ NGuid OverseerHandler::getGuid() {
 	return this->os->getGuid();
 }
 
-void setChangeFrontDefaultsFunction(std::function<void(Roles, wchar* endpointId)> changeFrontDefaults){
+void OverseerHandler::setChangeFrontDefaultsFunction(std::function<void(Roles, std::wstring)> changeFrontDefaults){
 	this->changeFrontDefaults = changeFrontDefaults;
 }
 
+void OverseerHandler::changeFrontDefaultsCallback(Roles role, std::wstring endpointId) {
+	this->changeFrontDefaults(role, endpointId);
+} 
+
 void OverseerHandler::setEndpointHandlers(std::vector<EndpointHandler*> ephs){
 	this->endpointHandlers = ephs;
 }
diff --git a/src/cont/contclasses.h b/src/cont/contclasses.h
index 55d33d8..7ea9f6e 100644
--- a/src/cont/contclasses.h
+++ b/src/cont/contclasses.h
@@ -62,11 +62,11 @@ class EndpointHandler {
 	
 public:
 	EndpointHandler(uint64_t idx);
-	//TODO: get();
-	Endpoint *ep = nullptr;
-	EndpointVolumeCallback *epc = nullptr;
+	//these two, currently unused. If I use them, I should feel bad.
+	//EndpointVolumeCallback* getEndpointVolumeCallback();
+	//Endpoint* getEndpoint();
+	
 	//std::wstring epName;
-
 	BackEndpointVolumeCallbackInfo* getCallbackInfo();
 	uint32_t getChannelCount();
 	
@@ -75,11 +75,15 @@ public:
 	void setVolume(int channel, float volume);
 	
 	std::wstring getName();
+	std::wstring getId();
+	
 	float getVolume(int channel);
 	bool getMute();
 	uint8_t getState();
 	uint8_t getRoles();
 	void setRoles(Roles newRole);
+	void assignRoles(Roles newRole);
+	void removeRoles(Roles newRole);
 	
 	void setVolume(NGuid guid, int channel, int value);
 	void setMute(NGuid guid, bool muted);
@@ -88,6 +92,8 @@ public:
 	~EndpointHandler();
 private:
 	uint64_t idx;
+	Endpoint *ep = nullptr;
+	EndpointVolumeCallback *epc = nullptr;
 	BackEndpointVolumeCallbackInfo callbackInfo;
     //QSlider *slidy;
 };
@@ -97,7 +103,9 @@ class OverseerHandler {
 
 public:
 	OverseerHandler();
-	void setChangeFrontDefaultsFunction(std::function<void(Roles, wchar* endpointId)> changeFrontDefaults);
+	void setChangeFrontDefaultsFunction(std::function<void(Roles, std::wstring)> changeFrontDefaults);
+	void changeFrontDefaultsCallback(Roles role, std::wstring endpointId);
+	
 	void setEndpointHandlers(std::vector<EndpointHandler*> ephs);
 	std::vector<EndpointHandler*> getEndpointHandlers();
 	std::vector<Endpoint*> getPlaybackEndpoints();
@@ -108,7 +116,8 @@ public:
 private:
     Overseer *os;
 	std::vector<EndpointHandler*> endpointHandlers;
-	std::function<void(Roles, wchar* endpointId)> changeFrontDefaults;
+	std::function<void(Roles, std::wstring)> changeFrontDefaults;
+	
 	//std::function<void(uint64_t /* device */, uint32_t /* channel */, float /* value */)> updateFrontVolumeCallback;
 	//std::function<void(uint64_t /* device */, bool /* mute */)> updateFrontMuteCallback;
 	
diff --git a/src/qt/qtclasses.cpp b/src/qt/qtclasses.cpp
index 1140fca..2543e1e 100644
--- a/src/qt/qtclasses.cpp
+++ b/src/qt/qtclasses.cpp
@@ -192,6 +192,10 @@ void EndpointWidget::updateMainVolume(int newValue){
  * }
  */
 
+EndpointHandler* EndpointWidget::getEndpointHandler(){
+	return this->eph;
+}
+
 void EndpointWidget::setIndex(uint64_t idx){
 	this->idx = idx;
 }
@@ -228,8 +232,61 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)  {
 	trayIcon->show();
 	trayIcon->setToolTip(STRING_TITLE);
 	trayIcon->setContextMenu(trayIconMenu);
+	//todo: ayo...
 	QString as = trayIcon->toolTip();
 	connect(trayIcon, &QSystemTrayIcon::activated, this, &MainWindow::trayIconActivated);
+
+
+	osh->setChangeFrontDefaultsFunction([this](Roles role, std::wstring endpointId) {
+
+		for (auto epw : this->ews) {
+		 	if (epw->getEndpointHandler()->getId() == endpointId) {
+				//not necessary to keep endpointState flags up to date right now, but updating it will allow for later config files / profiles
+				epw->defaultRolesCheckBoxes.at(role)->blockSignals(true);
+				epw->getEndpointHandler()->assignRoles(role);
+				epw->defaultRolesCheckBoxes.at(role)->setCheckState(Qt::Checked);
+				//epw->defaultRolesCheckBoxes.at(role)->setDisabled(true);
+				epw->defaultRolesCheckBoxes.at(role)->blockSignals(false);
+				
+				if (epw->getEndpointHandler()->getRoles() == Roles::ROLE_ALL) {
+					epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->blockSignals(true);
+					epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->setCheckState(Qt::Checked);
+					//epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->setDisabled(true);
+					epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->blockSignals(false);
+				}
+					
+				/*
+				 * switch (role) {
+				 * case Roles::ROLE_CONSOLE:
+				 * 	epw->getEndpointHandler()->assignRoles(role);
+				 * 	break;
+				 * case Roles::ROLE_MULTIMEDIA:
+				 * 	break;
+				 * case Roles::ROLE_COMMUNICATIONS:
+				 * 	break;
+				 * 
+				 * }
+				 */
+			} else {
+				if (epw->getEndpointHandler()->getRoles() & role) {
+					epw->defaultRolesCheckBoxes.at(role)->blockSignals(true);
+					epw->getEndpointHandler()->removeRoles(role);
+					epw->defaultRolesCheckBoxes.at(role)->setCheckState(Qt::Unchecked);
+					//epw->defaultRolesCheckBoxes.at(role)->setDisabled(false);
+					epw->defaultRolesCheckBoxes.at(role)->blockSignals(false);
+					
+					if (!epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->isEnabled()) {
+						epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->blockSignals(true);
+						//epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->setDisabled(false); 
+						epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->setCheckState(Qt::Unchecked);
+						epw->defaultRolesCheckBoxes.at(Roles::ROLE_ALL)->blockSignals(false);
+
+					}
+					
+				}
+			}
+		}
+	});
 }
 
 void MainWindow::closeEvent(QCloseEvent *event) {
diff --git a/src/qt/qtclasses.h b/src/qt/qtclasses.h
index 4082fc7..062c308 100644
--- a/src/qt/qtclasses.h
+++ b/src/qt/qtclasses.h
@@ -62,8 +62,8 @@ class EndpointWidget : public QWidget {
 	  	  
 public:
 	EndpointWidget(uint64_t idx, EndpointHandler* eph, QWidget *parent = nullptr);
-	//TODO: get();
-	EndpointHandler* eph;
+
+	EndpointHandler* getEndpointHandler();
 	void setIndex(uint64_t idx);
 	uint64_t getIndex();
 	
@@ -90,6 +90,7 @@ public slots:
 	void updateMute(int checked);
 
 private:
+	EndpointHandler* eph;
 	size_t defaultRolesVectorSize = 4;
 	QTimer* timer = nullptr;
 	uint64_t idx;