To install these plugins, point Eclipse at this site.
MDT OCL SDK 1.3.0 I200905191122: contains runtime, source, and documentation.
MDT UML2 SDK 3.0.0 I200904241604: contains runtime, source, and documentation.
MDT UML2 SDK 3.0.0 I200903261317: contains runtime, source, and documentation.
MDT UML2 SDK 3.0.0 I200903041139: contains runtime, source, and documentation.