I want to set up a button to have a number of selected records either 1) Print, 2) Save to PDF or 3) E-Mail. The Custom Dialog script step only allows 3 options, so if I use all three options, there's no Cancel option. Anyone have any ideas as to how I can offer three choices plus a Cancel option?

you could make 2 dialog boxes one the most common use...

[more...] [cancel] [print]

when you hit more you can choose...

[cancel] [pdf]

Or open a new window with your own layout.

Another alternative is to use the input fields as well. It also gives the possibility to do more than one of the possible actions. For example, use three temporary globals and ask for a Yes/No (or 0,1)for Print, PDF, Email, ignore any response which doesn't fit and then have an OK and a Cancel button. It takes a faction longer for the user but gives you a lot more flexibility.