diff --git a/picker.py b/picker.py
new file mode 100644
index 0000000..9b9b816
--- /dev/null
+++ b/picker.py
@@ -0,0 +1,62 @@
+from pyrocko.gui.snuffling import Snuffling, Choice, Param
+from pyrocko.gui.marker import PhaseMarker
+#from pyrocko.pile_viewer import Marker
+
+
+class Picker(Snuffling):
+
+	'''
+	Snuffling for having a panel to control the picking procedure, in
+	addition to the key-based control.
+	'''
+
+	def setup(self):
+		'''Customization of the snuffling.'''
+
+		self.set_name('Picker')
+		self.add_parameter(Choice('Phase', 'phase', None, [
+			None, 'P', 'S', 'Pn', 'Pg', 'Sn', 'Sg']))
+		self.add_parameter(Choice('Category', 'category', 'automatic', [
+			'automatic', 'manual', 'revised', 'abandoned']))
+		self.add_parameter(Choice('Polarity', 'polarity', None, [
+			None, 'positive', 'negative', 'undecidable']))
+
+		self.set_live_update(True)
+
+	def call(self):
+		'''Main work routine of the snuffling.'''
+
+		viewer = self.get_viewer()
+
+		if viewer.selected_markers() == []:
+			self.error('Error: No marker selected!')
+		elif isinstance(viewer.selected_markers()[0], PhaseMarker) == False:
+			self.error('Error: Selected marker is no phase marker!')
+
+		markers = [
+			m for m in viewer.selected_markers()
+			if isinstance(m, PhaseMarker)]
+		for m in markers:
+			m.set_phasename(self.phase)
+			if self.polarity == 'positive':
+				m.set_polarity(1)
+			elif self.polarity == 'negative':
+				m.set_polarity(-1)
+			elif self.polarity == 'undecidable':
+				m.set_polarity(0)
+			else:
+				m.set_polarity(self.polarity)
+			if self.category == 'automatic':
+				m.set_kind(0)
+			elif self.category == 'manual':
+				m.set_kind(1)
+			elif self.category == 'revised':
+				m.set_kind(2)
+			elif self.category == 'abandoned':
+				m.set_kind(3)
+
+
+def __snufflings__():
+	'''Returns a list of snufflings to be exported by this module.'''
+
+	return [Picker()]