diff --git a/qad/blockview/blockview.cpp b/qad/blockview/blockview.cpp
index 6c34863..a14e92e 100644
--- a/qad/blockview/blockview.cpp
+++ b/qad/blockview/blockview.cpp
@@ -28,7 +28,7 @@ BlockView::~BlockView() {
 
 void BlockView::_init() {
 	grid_visible = grid_snap = pm_connect = navigation = m_connect = m_trace_with_buses = prev_tcb = minimap = true;
-	mm_drag = moved = new_branch = new_bus = mm_cancel = iconnect = mm_copy = m_pin_mc = mm_thumb = move_bus_point = false;
+	mm_drag = moved = new_branch = new_bus = mm_cancel = iconnect = mm_copy = m_pin_mc = mm_thumb = move_bus_point = wheel_zoom = false;
 	match_bus = bus_from = 0;
 	mm_ci = 0;
 	hpin = 0;
@@ -638,7 +638,7 @@ void BlockView::timerEvent(QTimerEvent * e) {
 
 void BlockView::wheelEvent(QWheelEvent * e) {
 	if (!navigation) return;
-	if (e->modifiers().testFlag(Qt::ControlModifier)) {
+	if (wheel_zoom || e->modifiers().testFlag(Qt::ControlModifier)) {
 		double scl = 1. - e->delta() / 500.;
 		//scale(scl, scl);
 		if (!is_nav_anim || (nav_anim.state() != QPropertyAnimation::Running))
@@ -654,7 +654,7 @@ void BlockView::wheelEvent(QWheelEvent * e) {
 		animateNav(r);
 		return;
 	}
-	QGraphicsView::wheelEvent(e);
+	if (!wheel_zoom) QGraphicsView::wheelEvent(e);
 }
 
 
diff --git a/qad/blockview/blockview.h b/qad/blockview/blockview.h
index fadf324..22d19f7 100644
--- a/qad/blockview/blockview.h
+++ b/qad/blockview/blockview.h
@@ -49,6 +49,7 @@ class BlockView: public QGraphicsView
 	Q_PROPERTY(bool traceConsiderBuses READ isTraceConsiderBuses WRITE setTraceConsiderBuses)
 	Q_PROPERTY(bool pinMulticonnect READ isPinMulticonnectEnabled WRITE setPinMulticonnectEnabled)
 	Q_PROPERTY(bool miniMap READ isMiniMapEnabled WRITE setMiniMapEnabled)
+	Q_PROPERTY(bool zoomWheelOnly READ isZoomWheelOnly WRITE setZoomWheelOnly)
 
 	Q_PROPERTY(double _thumb READ _thumb WRITE _setThumb DESIGNABLE false SCRIPTABLE false)
 	Q_PROPERTY(QRectF _nav READ _nav WRITE _setNav DESIGNABLE false SCRIPTABLE false)
@@ -75,6 +76,7 @@ public:
 	bool isTraceConsiderBuses() const {return m_trace_with_buses;}
 	bool isPinMulticonnectEnabled() const {return m_pin_mc;}
 	bool isMiniMapEnabled() const {return minimap;}
+	bool isZoomWheelOnly() const {return wheel_zoom;}
 	double gridStep() const {return grid_step;}
 	double gridPointsWidth() const {return grid_points;}
 	SelectionMode selectionMode() const {return smode;}
@@ -183,7 +185,7 @@ protected:
 	QPropertyAnimation thumb_anim, nav_anim;
 	int timer_thumb, thumb_hide_delay, thick;
 	bool mm_drag, new_bus, new_branch, moved, mm_cancel, iconnect, mm_copy, mm_thumb, ae_enabled, is_nav_anim, is_block_anim, move_bus_point;
-	bool grid_visible, grid_snap, pm_connect, navigation, m_connect, m_trace_with_buses, m_pin_mc, minimap, prev_tcb;
+	bool grid_visible, grid_snap, pm_connect, navigation, m_connect, m_trace_with_buses, m_pin_mc, minimap, prev_tcb, wheel_zoom;
 	bool nav_prev_aa, nav_prev_imaa, nav_prev_grid;
 	double grid_step, grid_points, cur_scl, _talpha, thumb_scl;
 
@@ -220,6 +222,7 @@ public slots:
 	void setTraceConsiderBuses(bool on) {m_trace_with_buses = on;}
 	void setPinMulticonnectEnabled(bool on) {m_pin_mc = on;}
 	void setMiniMapEnabled(bool on) {minimap = on;}
+	void setZoomWheelOnly(bool on) {wheel_zoom = on;}
 
 	void zoom(double factor);
 	void zoomIn() {zoom(1.2);}