diff --git a/ddresc_visu/draw.py b/ddresc_visu/draw.py
index 09618fa..a9ffad0 100644
--- a/ddresc_visu/draw.py
+++ b/ddresc_visu/draw.py
@@ -78,6 +78,7 @@ class Visualisation:
 
 	def reload(self):
 		self.mapfile.load()
+		self.histograms = None
 		self.squares = None
 		self.draw()
 
@@ -94,8 +95,8 @@ class Visualisation:
 	def run(self, *, refresh=1800):
 		pygame.time.set_timer(pygame.USEREVENT, refresh * 1000)
 		pygame.event.set_blocked(None)
-#		pygame.event.set_allowed([pygame.USEREVENT, pygame.VIDEORESIZE, pygame.VIDEOEXPOSE, pygame.QUIT, pygame.KEYDOWN])
-		pygame.event.set_allowed([pygame.VIDEORESIZE, pygame.VIDEOEXPOSE, pygame.QUIT, pygame.KEYDOWN])
+		pygame.event.set_allowed([pygame.USEREVENT, pygame.VIDEORESIZE, pygame.VIDEOEXPOSE, pygame.QUIT, pygame.KEYDOWN])
+#		pygame.event.set_allowed([pygame.VIDEORESIZE, pygame.VIDEOEXPOSE, pygame.QUIT, pygame.KEYDOWN])
 		self.draw()
 		while True:
 			ev = pygame.event.wait()
@@ -121,5 +122,11 @@ class Visualisation:
 				colors['+'] = (0, 0, 0)
 				self.squares = None
 				self.draw()
+			if ev.type == pygame.KEYDOWN and ev.key == pygame.K_x:
+				self.order = ['@', '+', '?', '-', '/', '*']
+				self.squares = None
+				self.draw()
+			if ev.type == pygame.USEREVENT:
+				self.reload()