If you do not yet have a plugin, please begin with the Your First Plugin (Mac) guide. In Rhino for Windows, this UI is normally stored in an rui file that includes the buttons, the icons, and their associated commands. This guide presumes that you have a RhinoCommon plugin that has commands that can be run from a tool palette. This guide covers how to create and load a tool palette collection from your RhinoCommon plugin in Rhino for Mac.