Event Commands Explaination

[Ryu009]

I've tired to search the internet to find any website that will explain what each event command does and how its used.
Some examples would be awesome of how to use these commands.  The one command I'm looking for specifically is the input number command, what could this be used for?
Thanks for reading this,
Ryu

[modern algebra]

One thing it could be used for are passwords. You can put in an Input Number command then check the value of the variable you set it to. If correct, you get through the lock.

I've got to go, but there are other things it can be used for as well - Option setting, banks, etc...