hI NICE TO MEET YOU ALL, I JUST JOINED THE THIS FORUM SITE YESTERDAY,I 'M JUST GRADUATED, AND NOW WORK AS 3D CAD TECHINICIAN,CURRENTLY I'M LEARNING HOW TO CREATE A PARAMETRIC PART OR PIPE FITTING TO MAKE MY OWN CATALOG IN AUTOCAD MEP.SEVERAL FUNCTION IN AUTOCAD MEP, I NOT REALLY KNOW HOW TO USE.IS ANYONE ABLE TO HELP EXAMPLE SUCH AS, CONTENT BUILDER- PIPE, MVPART. THANKS

 
 Maybe you should use mechanical blocks and inserting in Map.
 
 Sorry this is my Thought because I don't use MEP.