the [http://www.sws-extension.org/ sws extenssion] is a plug-in that adds a large number of actions, in other words, it extends the functionality of Reaper substantially. and is free. It is highly recommended as Osara takes advantage of some of the added actions. When installing the SWS extension, follow the relevant instructions for your operating system as described on the Standing Water Studios (SWS) website. There are no actual setup options on the installer, so installing it by leaving everything in their defaults should get you up and running.