Porting from Xilinx to Altera

I believe you can run the megawizard as an executable(i.e. batch file) to create many variations, but I don't know much about it, and would be surprised at how straightforward it is. In general, when building a design, I'm fine with this method since you're really only creating a PLL at a time, it has a specific function, and it's nice to have access to all the menus to decide what you do and do not need. But when doing a bulk conversion, it can be cumbersome(especially when converting from an X design, where only one DCM primitive was used and you passed in parameters, so what you're doing makes sense.)