Megafunction: Switch

You are right when u know where to look for the IP in the megafunction. In my case, it is different. Previously an IP was created and i was trying to edit the parameter of the IP. So i choose to edit the existing custom megafunction variation, a dialog box pops out to let you select the IP.v file. I accidentaly came across Switch 11.0 under Megafunction name, a list of megafunction(bottom of dialog box). However, i can't find it in create new custom megafunction variation. I hope this clear the confusion.