The Plugin Channel Settings page will appear only in channels that hold external plugin generators. This page in Channel Settings holds the plugin editor where you set its specific options (that are different for every generator). Usually, the editor is displayed inside the Channels Settings window, when you click the PLUGIN tab button. However, some generators have bigger interfaces that do not fit inside that area, so they will appear in a separate window. In this case, the PLUGIN tab button will launch the editor's window when clicked.
FruityLoops supports VSTi and DXi plugins and its own Fruity Plugin format.
FruityLoops supports DirectX plugin generators standard developed by Twelve Tone Systems (R) and Microsoft (R). DirectX plugins are registered on installation directly in Windows, so FruityLoops will detect them no matter in what folder they were installed. However, in order DirectX plugin system to work, you need to have installed the latest DirectXMedia (it is now included in DirectX 8 run-time installation, which can be downloaded from www.microsoft.com).
VST2 instruments are supported in FruityLoops by using the special Fruity Wrapper plugin (generator version). VSTi plugins are DLL files that should be installed in the VST folder of FruityLoops in order to use them (<FruityLoops Folder>\Plugins\VST). You can also set up an additional VST folder from the Directories window. For more information, see Fruity Wrapper's help.
FruityLoops 3.0 introduces its own plugin generators standard. Fruity Plugins have their own editor interface and still events can be automated and edited using the Event Editor (just right-click a control in the editor).
Note: Some generators support custom wave samples / oscillator shapes. In such generators, the Sampler Channels Settings page is visible, where you can set the wave file to be used as custom sample/shape.