How to add a button from my library

1

[size=2]does anyone know how to add an instance of a button in my library to the stage during runtime. I know I can add a movie with a button inside but I need to add upto 6 of them and each one will have a different onRelease

or does anyone know how to add a function for the onRelease event in the root of my doc that can reference a button inside a movieclip

Thanks

John
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