It would be really good to have prototype links copied with the repeat grid function. Currently, you can copy and paste objects and the prototype links will copy with but if you're filling a page with a lot of smaller objects (i.e. items on a shopping page) it's a lot easier to use the Repeat Grid function. This way a lot of little buttons can all lead to the same place, which can be especially helpful for lo-fi prototypes where all the links go to one Lorem Ipsum template page.

You could either have the option to turn "Repeat Prototype" on or have a repeat grid option on the prototype page.