How to drop to make connection?


In a book on Maya texturing and lighting, a step is written as follows:

But no matter how I drop according to the excerpted instruction, no menu pops up. The Stucco node just lies over the Blinn material node (see the screenshot below). So how to follow the step described above? I am using Maya 2018 on Windows 10. Thanks.


Middle mouse drag it? works here. just tried it.