UDP = User Defined Property.
Read all the comments here carefully and read the links, look at the pictures posted. There is probably enough information to get you going.
Credit where credit is due! Give kudos or accept as solution whenever you can.
Custom properties from online help menu. It should give you enough info to get them built. You should also try searching this group for UDPs. There have been several explanations.
Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.