The Plugins page presents the status of Phoenix plug-ins and provides the ability to add a plug-in.
Phoenix plug-ins are grouped into three tabs: General, System, and Non-Loaded.
General tab: List of plug-ins that are operational objects responsible for providing Phoenix functions such as drug modeling, charting, and dataset manipulation. The name, version number, and state (“Started” or “Not Started”) of each operational object plug-in are shown.
System tab: List of plug=ins used to provide Phoenix framework functions. The name, version, and state of each framework plug-in is listed.
Non-Loaded tab: Presents information on why a plug-in failed to load. If a plug-in fails to load its state is listed as “FailedToStart.” If it has not yet been loaded, the state is listed as “Not Loaded.” Select the failed plug-in to display any details on the failure in the Reason field.
To add a plug-in:
Select Plugins in the Preferences dialog and click 
(Load Plugin icon).
In the Load Plugin dialog, select a plug-in manifest or plug-in assembly.
A plug-in manifest is a file that describes the plug-in.
A plug-in assembly is the plug-in DLL.
Press Open.
The plug-in is added to the General or System tab, depending on the type of plug-in selected.