Many sampler VST plugins like Native Instruments Kontakt 5 must load large sample libraries when their plugin state is loaded.  By default a plugin's state is loaded on every scene change (for those that know VST, this loads an FXB chunk into the plugin).  Forte has no control over what a VST plugin does during FXB load.  However, Forte can control when plugin state is loaded using the FXB chunk.

In the plugin console, the Scene Commands tab enables you to tell Forte how to interact with the plugin.

scenecommandstab

Scene Change Tab on a plugin

The options in the drop down list are:

• Do not set per-Scene plugin configuration data – when this is checked, data specific to each scene is not loaded into this instrument.  Instead the instrument is loaded once with the configuration it held when the rack file was last saved and maintains that configuration across all scene changes in the rack. This is selected any time a plugin is loaded that appears on the scene skip list in Program Settings.
• Auto:  Set plugin configuration if it is different from the previous scene – Forte tracks the data sent to a plugin and this option will only send configuration data if it is different than what was loaded by the previous scene. This can reduce scene change times by avoiding unnecessary operations. Note that Forte cannot know if you have manually changed the plugin’s configuration; the comparison is only done between the data of the previous scene and the current scene.
• Yes:  Set plugin configuration when changing to this scene –  load configuration data into the instrument when changing to this scene
• No:  Do not set plugin configuration when changing to this scene –  do not load configuration data into the instrument when changing to this scene.
By selecting "Do not set per-Scene configuration data", forte will only load the main plugin state when loading the rack.  Then, you may use other means to switch sounds such as key splits or using the provided program change boxes.

For an example of doing this see the video at https://www.youtube.com/watch?v=j4nLSJoB9ro which demonstrates using this with Kontakt 5 and using program changes to switch between samples organized in a bank.