When looking in the maker's Plugin Manager, most plugins will have a description written by the author, and some authors use this space to to describe how the plugin is used. Depending on the plugin, you would use its effects through its entry fields or by using Notetags or Script Calls based on its design. In the case of Notetags, you can place them inside the Notes box found on various Database pages, the Map, or even the Event's Comments process (As many authors use <the: brackets> to isolate the code, you can still put in regular Notes ).