[flexcoders] How to export a Flex project and a Flex library project as an FXP file?

[markflex2007]

Hi 

I know normally one FXP only for one project. but do you know how to export two 
project(one normal and one library) to one fxp. I see some fxp include many 
projects. but I am not sure how to build the fxp.

Thanks

Mark