 Also included are hundreds of JSFX plug-ins ranging from standard effects to specific applications for MIDI and audio.JSFX scripts are text files, which when loaded into REAPER (exactly like a VST or other plug-in) become full-featured plug-ins ranging from simple audio effects (e.g delay, distortion, compression) to instruments (synths, samplers) and other special purpose tools (drum triggering, surround panning).All JSFX plug-ins are editable in any text editor and thus are fully user customizable.