NX How to use a specific cdl file for a post

Customer would like to present a specific set of UDEs when the user has loaded a machine in the cam setup.  In this case, it will not be a different cdl file for every post.  He would like to have a common fanuc.cdl used for all the fanuc based posts and a common siemens.cdl file for all the sinumerik based posts.

In post builder, we can use the "Include Other CDL File" option under N/C Data Definitions; Other Data Elements to point to an alternate cdl file.  This will load just that cdl file once the post is active when the machine is loaded.  You can point to the same cdl file in all the different posts this way.