I often use find references to see all the places in my code where a function is called. This doesn't work for NGUI because the list of referenced functions is not stored in a file that Mono Develop can parse through. Even if it were in a simple text file (but a more elegant solution would be preferred), it would would be extremely useful for NGUI to save the list of function delegates that it references in button clicks, slider moves, etc. Having those function calls so separated from the code and the editor requires that the developer have explicit knowledge of all the buttons in the game.