UI components with click action events, typically buttons or menu items, have a VS Action property listed under Action in the Property Editor. For common interactions between components and Java methods, create a vsAction in your VirtualSpace and connect the vsAction to your Java method.
Creating a vsAction on a UI component through the component’s properties view
With the vsAction selected in the VirtualSpace Editor, search the Property Editor for the Connectors section; here, in the value field of the OnVSAction property, click the more … menu and select a Java method or create a new method.
Create or assign a Java method to a vsAction in the properties view of the VirtualSpace editor