She will move them on her own. Once she's confident of her ability to say BACK OFF, she will start moving them off the ground. Storm is still on the ground with the babes at 2 weeks. Jessica (last year) had hers up on the roost at the same age. Every mother is different and does the chick raising at her own pace. Storm was orphaned at 3 weeks, so I'm looking at next week and wondering if she's going to be done all sudden like or hang on to the babies until they're as big as she is.
Baby proofing the run, lots of escape spots and lots of food and water places are wise now. Otherwise, let them raise the babies and enjoy the "tv" show.