SAM Suite is a native XP11 plugin offering different possibilities to scenery authors focused on animations. It is available for Windows 10, MAC, and Linux. The plugin is highly optimized for performance. The most obvious part is the fact that calculations for datarefs only start when an object is loaded and in the visible range. It can be used in hundreds of sceneries without any noticeable fps impact. The plugin is installed into the main plugin directory, thus it's a global plugin and not per scenery. The sceneries only contain an xml file with the settings.
For more information, descriptions, problems, and support, please visit Stairport Sceneries FAQ.