Extreme reactor has a inbuilt material list?

So apparently, there is a way to check on what is missing from a multi block structure in extreme reactors, i just found out about it and i'm not sure if it mentioned anywhere at all.

So if your hands are empty and you shift+right click on the multi-block structure, a pop up will appear too left telling you what is wrong and what you need to build it.

Is this mentioned anywhere?