When you select Menu button, you can define the menu elements that you want to appear when users click the button.

Current object: You can select methods that are owned by the class that owns the configuration. For example, if the configuration is on a site view, you will be able to select methods that are owned by the Site class.
Selected object: You can select methods that are owned by the class of objects that are listed in the configuration. For example, if the configuration lists assets, you will be able to select methods owned by the Asset class. Users can then use the button to apply the method to one or more selected objects in the configuration.
Master object: You can select methods that are owned by a master object. For example, in a configuration showing failure modes, the master object might be strategy development analyses.