
> Q: How to determine which eclipse plugins are contributing to menus and toolbars

<kbd>Alt</kbd> + <kbd>Shift</kbd> + <kbd>F2</kbd>  
then click some menu.  
You can know contributor and menu URI.  

<kbd>Alt</kbd> + <kbd>Shift</kbd> + <kbd>F1</kbd> : inspect current active part and selection.  
<kbd>Alt</kbd> + <kbd>Shift</kbd> + <kbd>F3</kbd> : inspector contributor of Widget or item.

You needs plugin-spy plugin in runtime.