I don\'t even know if it\'s called an alias, but let me continue anyway.
You know how the System.String type in C# is sorta \"aliased\" with \"string\"? In Visual S
Use a using directive
using Rppr = Namespace.To.RelocatedPlantProductReleaseItem;
EDIT Op clarified to ask for a global solution.
There is no typedef style equivalent in C# which can create a global replacement of a type name. You'll need to use a using directive in every file you want to have this abbreviation or go for the long version of the name.