You can put a button (or picture node) on top of the module node, making it look like the module. To make it look the same, you can just add an image to the button -- an image of the module node, then turn off Node Fill, Borders and Labels, so all you see is the image, which of course then looks identical to the module node. An then, of course, since your can have OnClick expressions on Buttons and Images, you have a place to intercept the click event.

ou can put a button (or picture node) on top of the module node, making it look like the module.