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Can you explain what your problem is with adding a menu to your program?
If you are getting errors, please copy and paste here the full text of the error messages.

What is wrong with the menu?

There are many GUI components that would allow the user to choose a shape.
A menu item is one.
You need to look at the choice of components and chose one that will work with your program.

What does the user need permission for?

Sorry, I have no idea what your problem is.

Have you read the tutorial about how to create menus?
That would be a good place to start. Go to this site and Find Menu:
The Really Big Index

Can you explain what you are trying to do?
Menus usually contain menu items.