How to add "AME Developer" or "AME Application Administrator ICX" responsibility?

Hi,

I want to create a new item class in R12 AME. Both the implementation guide as well as the AME Developer guide tells how to navigate and create the item class. I have followed the instructions in the implementation guide for adding the roles to the user and associated grants.

I do not see any menu/link in the "Approvals Management Administrator" responsibility to create a new item class. And I do not find the "AME Developer" or AME Application Administrator ICX"  responsibilities for adding to my user.

Appreciate the help.

thanks

Raja Kappera