11.2 Event processing GUI The Event processing GUI consists of 2 main parts as shown in Figure 238. On the left hand side you can add ( ) or duplicate ( ) an EPP to the simulation, duplicate an EPP , remove ( ) an EPP from the simulation and export (  ) an EPP .   There exist some predefined EPPs builtin stored in the library environment (Section ‎13.5.4) but you can also install your own EPP into SEAMCAT by loading your own .jar file (Section ‎2.23). The list of builtin EPPs is not exhaustive and will increase with time and needs of SEAMCAT community.   A dedicated section on how to develop your own EPP is given in Section ‎14. Figure 238: Event processing GUI