Swap symbol instances with another symbol


I've used the Symbol Sprayer in Illustrator to create a huge pile of symbol instances. I expanded the object so now I have many instances of those symbols in a group. I duplicated the group, and now I want to make all the instances in the second group point to a new symbol.

How do I say "Given these symbol instances that I have selected, please change them to be instances of a different symbol"? I've looked through all options in the Symbols palette, as well as the context menu for the selected items, and I can see nothing relevant.

(I'm using Adobe Illustrator CC 2015.3.1 Release, version 20.1.0 64-bit, on Windows 7x64, in case it matters.)

11/8/2016 4:03:00 PM

With the symbols selected, look in the Control panel (normally docked right under the menu bar; use Window â–¶ Control to show it, if hidden) for the "Replace" option. Click on this drop down to show your loaded symbols, and pick a new one.

screenshot of the controls panel with Replace symbol open
click for larger image

11/8/2016 4:11:00 PM