Disable the right-click and drag copy in Simulink

In Simulink, if you right-click a block and move the mouse slightly, it will create a copy of the block, instead of bringing up the context menu. This is very inconvenient as I never use the right-button drag to copy feature, and I constantly use the right-click to bring up a context menu.

Is there a way to disable this so that right-clicking and moving the mouse never creates a copy of a block?

[Dustin]

Ditto...this is rather annoying, especially if your mouse is sensitive.

[William Chavez]

I'd like to know this answer so I can turn it back on.