need help to learn and compleet my simple addon

[b3vad]

Hi I'm new in addon and lua .
I started from wowwiki and did "hello world" tutorial then there was nothing to teach me how to use events - checkbox - and ...
i managed to design my addon's interface with addon studio but my lua file is still empty .
i know few of programing and scripting and just need some push to start my car . just few questions !

1- how i can make my addon to react to events ?
2- is there a list of events?
3- how i can use checkboxes ?
4- witch one of things i want in my(this) addon are possible?
(addon is attached)

please don't complete the addon with a twisted solution ! i need to learn this basics . ty