13.5 Plugins Library 13.5.1 Antenna plugin elements To create or modify a library element containing parameters of a particular antenna, select the Antennas command from the Library pull-down menu or directly with CTRL+SHIFT+A . Since the antenna is implemented as a plugin, it is possible to include a new antenna plugin using the .jar installer and to add it to the list of existing pre-defined antennas. Any of the antenna elements is then selectable as shown in the picture below:    Figure 295: Example of the antenna library       When adding a new antenna, enter the name (unique identifier) and description of the antenna as well as its technical parameters - peak gain and one or more radiation patterns, as necessary. See Annex A11.6 for further details. Note 1: It is possible to quickly see the antenna pattern with mouse-over capability on top of the pattern button.   Figure 296: Quick over mouse preview of the pattern     Note 2: If none of the radiation patterns is checked, SEAMCAT will assume this being an omni-directional antenna. Note 3: It is possible to create an antenna from the workspace and export it to your library environment.  13.5.2 Coverage radius plugin elements To create or modify a coverage radius element, select the Coverage radius library command from the Library pull-down menu or directly CTRL+SHIFT+C . This activates the Coverage radius library window which displays a list of existing Coverage radius options: Figure 297: Example of the coverage radius plugin library   13.5.3 Propagation model plugin To create or modify a library element containing parameters of a particular propagation model, select the Propagation model command from the Library pull-down menu or directly with CTRL+SHIFT+P . Since the propagation models are implemented as plugin, it is possible to include a new propagation model using the .jar installer and to add it to the list of existing pre-defined models. Any of the propagation models is then selectable as shown in the picture below:  Figure 298: Example of the propagation model plugin library     More detailed information on specific propagation models is available in ‎ANNEX 17: 13.5.4 Event Processing Plugin To create or modify a library element containing parameters of a particular event processing plugin, select the event processing plugin command from the Library pull-down menu or directly with CTRL+SHIFT+E .  A list of available built-in event processing plugin is available in Figure 240.