Should be as simple as right clicking on the operation(s) that you want to copy, choosing "copy" from the flyout menu, switching to the new file, highlighting the geometry group that you want the operation to reside in, right click, paste inside. You might need to make sure the two boxes in "template settings" (also located in the right-click menu when clicking on the operations in the original file) are checked for each operation that you are copying. I'm not sure if those options affect a simple copy/paste or not. They won't hurt anything.
