Some BlinkScript controls are used by all kernels. Rather than write these individually in each instance, the BlinkScript properties panel includes Kernel Parameters and Settings tabs, providing easy access to the standard kernel controls.
The Kernel Parameters tab also contains any controls exposed by specific kernel commands. For example, the default InvertKernel exposes the Multiply control. See Editing Kernels for more information on exposing controls.
The Publish button also resides on the Kernel Parameters tab, but we'll get into that in more detail in Publishing and Protecting Your Kernels.