Right now, it's pretty easy to "duplicate" pages, but assignments only have the "copy to" feature, relocating the assignment to another course. It would be really awesome for those of us template people that like to replicate common forms to just have a simple "copy" feature in modules that would duplicate the item and allow us to customize. I did some digging in the forum and it looked like a similar feature was suggested and eventually adopted in 2016ish, but curious as to what happened / why it went away. 

Yesterday, my suggestion got labeled with the following comment, but this is NOT what I am talking about:

@MrWilliams Thanks for sharing this idea. The instructions for duplicating and copying modules can be found in How do I duplicate a module? - Canvas Community and How do I copy a module to another course? - Canvas Community respectively. As this is existing functionality, we've archived the idea.

What I'm hoping for is, on the module screen, the ability to copy/duplicate any item in a module (e.g. an assignment or a page).  While "copy to" exists, I'm hoping for just "copy" so I can have the same thing, right there, ready for me to re-title and edit its content.