text: #########################################
  #######       Rig On The Fly      #######
  ####### Copyright © 2020 Dypsloom #######
  #######    https://dypsloom.com/  #######
  #########################################
  
  import bpy 
  
  # Here comes the bl-info later. 
  
  class ADD_OT_say_hi(bpy.types.Operator):
  	bl_idname = 'add.say_hi'
  	bl_description = 'Look in the console'
  	bl_category = 'Usefill addon'
  	bl_label = 'Say Hi'
  
  	def execute(self, context):
  		print('hi') 	
  		return {"FINISHED"}
  
  class ADD_OT_say_bye(bpy.types.Operator):
  	bl_idname = 'add.say_bye'
  	bl_description = 'Look in the console'
  	bl_category = 'Usefill addon'
  	bl_label = 'Say Bye'
  
  	def execute(self, context):
  		print('bye')		
  		return {"FINISHED"}
  
  # I want the above 2 classes to be in a drop-down-menu.  
  # The class below not included in the drop down, but a button.  
  
  class ADD_OT_say_nothing(bpy.types.Operator):
  	bl_idname = 'add.say_nothing'
  	bl_description = 'Look in the console'
  	bl_category = 'Usefill addon'
  	bl_label = 'Say nothing'
  
  	def execute(self, context):
  		print('Nothing')		
  		return {"FINISHED"}
  
  
  class ADD_MT_menu(bpy.types.Menu):
  	bl_label = "StoryTelling Menu"
  	bl_idname = "ADD_MT_menu"
  
  	def draw(self, context):
  		layout = self.layout
  
  		layout.operator("add.say_hi")
  		layout.operator("add.say_bye")
  
  # Below the menu I get so far, but shows only buttons. 
  
  
  class ADD_PT_panel(bpy.types.Panel):
  	bl_space_type = "VIEW_3D"
  	bl_region_type = 'UI'
  	bl_label = 'The Usefill addon'
  	bl_category = 'Usefill addon'
  
  	def draw(self, context):
  		layout = self.layout
  		row = layout.row()
  		row.label(text="Usefill addon")
  		row = layout.row()
  		row.menu("ADD_MT_menu")
  		row = layout.row()
  		row.operator("add.say_nothing", icon="SNAP_GRID")
  
  #Register and unregister classes	
  
  classes = (
  	ADD_OT_say_hi,
  	ADD_OT_say_bye,
  	ADD_MT_menu,
  	ADD_PT_panel,
  	ADD_OT_say_nothing)  
  
  def register():
  	from bpy.utils import register_class
  	for cls in classes:
  		register_class(cls)
  
  def unregister():
  	from bpy.utils import unregister_class
  	for cls in classes:
  		unregister_class(cls)
  
  if __name__ == "__main__":
  	register()
  