Userform macro to generate multiple file types

I currently have a drawing macro that I use to derive multiple outputs (PDF and STP), what I would like to do is upon selecting the macro have a userform/box come up where the user can select what type of outputs they would like to create.  Ultimately I would like to have check boxes for each of the different types of outputs (STP, PDF, AW, STL...) with some of them having drop downs for selecting which referenced model/configuration to generate it from.  I'm looking to do this in multiple parts over time, any help would be greatly appreciated.