By default, plug-in views and menu items display in the vSphere Client user interface unconditionally. The vSphere Client supports a Service Provider Interface (SPI) that allows plug-in servers to filter views or menu items so they display conditionally. Conditional extensions are known as dynamic extensions.
Dynamic extensions are supported for Summary, Monitor, and Configure views, and for Menu actions. The vSphere Client SDK does not currently support dynamic extensions for Global views.